[PATCH] dvb: remove unnecessary casts in frontends

remove unnecessary casts in frontends (Kenneth Aafloy)

Signed-off-by: Johannes Stezenbach <js@linuxtv.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

21 files changed, 241 insertions, 242 deletions

diff --git a/drivers/media/dvb/frontends/at76c651.c b/drivers/media/dvb/frontends/at76c651.c
index ce2eaa1640e..72a2b5455b0 100644
--- a/drivers/media/dvb/frontends/at76c651.c
+++ b/drivers/media/dvb/frontends/at76c651.c
@@ -259,7 +259,7 @@ static int at76c651_set_parameters(struct dvb_frontend* fe,
 				   struct dvb_frontend_parameters *p)
 {
 	int ret;
-	struct at76c651_state* state = (struct at76c651_state*) fe->demodulator_priv;
+	struct at76c651_state* state = fe->demodulator_priv;
 
 	at76c651_writereg(state, 0x0c, 0xc3);
 	state->config->pll_set(fe, p);
@@ -276,7 +276,7 @@ static int at76c651_set_parameters(struct dvb_frontend* fe,
 
 static int at76c651_set_defaults(struct dvb_frontend* fe)
 {
-	struct at76c651_state* state = (struct at76c651_state*) fe->demodulator_priv;
+	struct at76c651_state* state = fe->demodulator_priv;
 
 	at76c651_set_symbol_rate(state, 6900000);
 	at76c651_set_qam(state, QAM_64);
@@ -294,7 +294,7 @@ static int at76c651_set_defaults(struct dvb_frontend* fe)
 
 static int at76c651_read_status(struct dvb_frontend* fe, fe_status_t* status)
 {
-	struct at76c651_state* state = (struct at76c651_state*) fe->demodulator_priv;
+	struct at76c651_state* state = fe->demodulator_priv;
 	u8 sync;
 
 	/*
@@ -319,7 +319,7 @@ static int at76c651_read_status(struct dvb_frontend* fe, fe_status_t* status)
 
 static int at76c651_read_ber(struct dvb_frontend* fe, u32* ber)
 {
-	struct at76c651_state* state = (struct at76c651_state*) fe->demodulator_priv;
+	struct at76c651_state* state = fe->demodulator_priv;
 
 	*ber = (at76c651_readreg(state, 0x81) & 0x0F) << 16;
 	*ber |= at76c651_readreg(state, 0x82) << 8;
@@ -331,7 +331,7 @@ static int at76c651_read_ber(struct dvb_frontend* fe, u32* ber)
 
 static int at76c651_read_signal_strength(struct dvb_frontend* fe, u16* strength)
 {
-	struct at76c651_state* state = (struct at76c651_state*) fe->demodulator_priv;
+	struct at76c651_state* state = fe->demodulator_priv;
 
 	u8 gain = ~at76c651_readreg(state, 0x91);
 	*strength = (gain << 8) | gain;
@@ -341,7 +341,7 @@ static int at76c651_read_signal_strength(struct dvb_frontend* fe, u16* strength)
 
 static int at76c651_read_snr(struct dvb_frontend* fe, u16* snr)
 {
-	struct at76c651_state* state = (struct at76c651_state*) fe->demodulator_priv;
+	struct at76c651_state* state = fe->demodulator_priv;
 
 	*snr = 0xFFFF -
 	    ((at76c651_readreg(state, 0x8F) << 8) |
@@ -352,7 +352,7 @@ static int at76c651_read_snr(struct dvb_frontend* fe, u16* snr)
 
 static int at76c651_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
 {
-	struct at76c651_state* state = (struct at76c651_state*) fe->demodulator_priv;
+	struct at76c651_state* state = fe->demodulator_priv;
 
 	*ucblocks = at76c651_readreg(state, 0x82);
 
@@ -369,7 +369,7 @@ static int at76c651_get_tune_settings(struct dvb_frontend* fe, struct dvb_fronte
 
 static void at76c651_release(struct dvb_frontend* fe)
 {
-	struct at76c651_state* state = (struct at76c651_state*) fe->demodulator_priv;
+	struct at76c651_state* state = fe->demodulator_priv;
 	kfree(state);
 }
 
@@ -381,7 +381,7 @@ struct dvb_frontend* at76c651_attach(const struct at76c651_config* config,
 	struct at76c651_state* state = NULL;
 
 	/* allocate memory for the internal state */
-	state = (struct at76c651_state*) kmalloc(sizeof(struct at76c651_state), GFP_KERNEL);
+	state = kmalloc(sizeof(struct at76c651_state), GFP_KERNEL);
 	if (state == NULL) goto error;
 
 	/* setup the state */
diff --git a/drivers/media/dvb/frontends/cx22700.c b/drivers/media/dvb/frontends/cx22700.c
index a212279042b..0c2ed443861 100644
--- a/drivers/media/dvb/frontends/cx22700.c
+++ b/drivers/media/dvb/frontends/cx22700.c
@@ -232,7 +232,7 @@ static int cx22700_get_tps (struct cx22700_state* state, struct dvb_ofdm_paramet
 
 static int cx22700_init (struct dvb_frontend* fe)
 
-{	struct cx22700_state* state = (struct cx22700_state*) fe->demodulator_priv;
+{	struct cx22700_state* state = fe->demodulator_priv;
 	int i;
 
 	dprintk("cx22700_init: init chip\n");
@@ -258,7 +258,7 @@ static int cx22700_init (struct dvb_frontend* fe)
 
 static int cx22700_read_status(struct dvb_frontend* fe, fe_status_t* status)
 {
-	struct cx22700_state* state = (struct cx22700_state*) fe->demodulator_priv;
+	struct cx22700_state* state = fe->demodulator_priv;
 
 	u16 rs_ber = (cx22700_readreg (state, 0x0d) << 9)
 		   | (cx22700_readreg (state, 0x0e) << 1);
@@ -286,7 +286,7 @@ static int cx22700_read_status(struct dvb_frontend* fe, fe_status_t* status)
 
 static int cx22700_read_ber(struct dvb_frontend* fe, u32* ber)
 {
-	struct cx22700_state* state = (struct cx22700_state*) fe->demodulator_priv;
+	struct cx22700_state* state = fe->demodulator_priv;
 
 	*ber = cx22700_readreg (state, 0x0c) & 0x7f;
 	cx22700_writereg (state, 0x0c, 0x00);
@@ -296,7 +296,7 @@ static int cx22700_read_ber(struct dvb_frontend* fe, u32* ber)
 
 static int cx22700_read_signal_strength(struct dvb_frontend* fe, u16* signal_strength)
 {
-	struct cx22700_state* state = (struct cx22700_state*) fe->demodulator_priv;
+	struct cx22700_state* state = fe->demodulator_priv;
 
 	u16 rs_ber = (cx22700_readreg (state, 0x0d) << 9)
 		   | (cx22700_readreg (state, 0x0e) << 1);
@@ -307,7 +307,7 @@ static int cx22700_read_signal_strength(struct dvb_frontend* fe, u16* signal_str
 
 static int cx22700_read_snr(struct dvb_frontend* fe, u16* snr)
 {
-	struct cx22700_state* state = (struct cx22700_state*) fe->demodulator_priv;
+	struct cx22700_state* state = fe->demodulator_priv;
 
 	u16 rs_ber = (cx22700_readreg (state, 0x0d) << 9)
 		   | (cx22700_readreg (state, 0x0e) << 1);
@@ -318,7 +318,7 @@ static int cx22700_read_snr(struct dvb_frontend* fe, u16* snr)
 
 static int cx22700_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
 {
-	struct cx22700_state* state = (struct cx22700_state*) fe->demodulator_priv;
+	struct cx22700_state* state = fe->demodulator_priv;
 
 	*ucblocks = cx22700_readreg (state, 0x0f);
 	cx22700_writereg (state, 0x0f, 0x00);
@@ -328,7 +328,7 @@ static int cx22700_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
 
 static int cx22700_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
 {
-	struct cx22700_state* state = (struct cx22700_state*) fe->demodulator_priv;
+	struct cx22700_state* state = fe->demodulator_priv;
 
 	cx22700_writereg (state, 0x00, 0x02); /* XXX CHECKME: soft reset*/
 	cx22700_writereg (state, 0x00, 0x00);
@@ -346,7 +346,7 @@ static int cx22700_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_par
 
 static int cx22700_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
 {
-	struct cx22700_state* state = (struct cx22700_state*) fe->demodulator_priv;
+	struct cx22700_state* state = fe->demodulator_priv;
 	u8 reg09 = cx22700_readreg (state, 0x09);
 
 	p->inversion = reg09 & 0x1 ? INVERSION_ON : INVERSION_OFF;
@@ -363,7 +363,7 @@ static int cx22700_get_tune_settings(struct dvb_frontend* fe, struct dvb_fronten
 
 static void cx22700_release(struct dvb_frontend* fe)
 {
-	struct cx22700_state* state = (struct cx22700_state*) fe->demodulator_priv;
+	struct cx22700_state* state = fe->demodulator_priv;
 	kfree(state);
 }
 
@@ -375,7 +375,7 @@ struct dvb_frontend* cx22700_attach(const struct cx22700_config* config,
 	struct cx22700_state* state = NULL;
 
 	/* allocate memory for the internal state */
-	state = (struct cx22700_state*) kmalloc(sizeof(struct cx22700_state), GFP_KERNEL);
+	state = kmalloc(sizeof(struct cx22700_state), GFP_KERNEL);
 	if (state == NULL) goto error;
 
 	/* setup the state */
diff --git a/drivers/media/dvb/frontends/cx22702.c b/drivers/media/dvb/frontends/cx22702.c
index 011860ce36c..f4aa44136c7 100644
--- a/drivers/media/dvb/frontends/cx22702.c
+++ b/drivers/media/dvb/frontends/cx22702.c
@@ -200,7 +200,7 @@ static int cx22702_get_tps (struct cx22702_state *state, struct dvb_ofdm_paramet
 static int cx22702_set_tps (struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
 {
 	u8 val;
-	struct cx22702_state* state = (struct cx22702_state*) fe->demodulator_priv;
+	struct cx22702_state* state = fe->demodulator_priv;
 
 	/* set PLL */
         cx22702_writereg (state, 0x0D, cx22702_readreg(state,0x0D) &0xfe);
@@ -338,7 +338,7 @@ static int cx22702_set_tps (struct dvb_frontend* fe, struct dvb_frontend_paramet
 static int cx22702_init (struct dvb_frontend* fe)
 {
 	int i;
-	struct cx22702_state* state = (struct cx22702_state*) fe->demodulator_priv;
+	struct cx22702_state* state = fe->demodulator_priv;
 
 	cx22702_writereg (state, 0x00, 0x02);
 
@@ -360,7 +360,7 @@ static int cx22702_init (struct dvb_frontend* fe)
 
 static int cx22702_read_status(struct dvb_frontend* fe, fe_status_t* status)
 {
-	struct cx22702_state* state = (struct cx22702_state*) fe->demodulator_priv;
+	struct cx22702_state* state = fe->demodulator_priv;
 	u8 reg0A;
 	u8 reg23;
 
@@ -389,7 +389,7 @@ static int cx22702_read_status(struct dvb_frontend* fe, fe_status_t* status)
 
 static int cx22702_read_ber(struct dvb_frontend* fe, u32* ber)
 {
-	struct cx22702_state* state = (struct cx22702_state*) fe->demodulator_priv;
+	struct cx22702_state* state = fe->demodulator_priv;
 
 	if(cx22702_readreg (state, 0xE4) & 0x02) {
 		/* Realtime statistics */
@@ -406,7 +406,7 @@ static int cx22702_read_ber(struct dvb_frontend* fe, u32* ber)
 
 static int cx22702_read_signal_strength(struct dvb_frontend* fe, u16* signal_strength)
 {
-	struct cx22702_state* state = (struct cx22702_state*) fe->demodulator_priv;
+	struct cx22702_state* state = fe->demodulator_priv;
 
 	*signal_strength = cx22702_readreg (state, 0x23);
 
@@ -415,7 +415,7 @@ static int cx22702_read_signal_strength(struct dvb_frontend* fe, u16* signal_str
 
 static int cx22702_read_snr(struct dvb_frontend* fe, u16* snr)
 {
-	struct cx22702_state* state = (struct cx22702_state*) fe->demodulator_priv;
+	struct cx22702_state* state = fe->demodulator_priv;
 
 	u16 rs_ber=0;
 	if(cx22702_readreg (state, 0xE4) & 0x02) {
@@ -434,7 +434,7 @@ static int cx22702_read_snr(struct dvb_frontend* fe, u16* snr)
 
 static int cx22702_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
 {
-	struct cx22702_state* state = (struct cx22702_state*) fe->demodulator_priv;
+	struct cx22702_state* state = fe->demodulator_priv;
 
 	u8 _ucblocks;
 
@@ -449,7 +449,7 @@ static int cx22702_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
 
 static int cx22702_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
 {
-	struct cx22702_state* state = (struct cx22702_state*) fe->demodulator_priv;
+	struct cx22702_state* state = fe->demodulator_priv;
 
 	u8 reg0C = cx22702_readreg (state, 0x0C);
 
@@ -459,7 +459,7 @@ static int cx22702_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_par
 
 static void cx22702_release(struct dvb_frontend* fe)
 {
-	struct cx22702_state* state = (struct cx22702_state*) fe->demodulator_priv;
+	struct cx22702_state* state = fe->demodulator_priv;
 	kfree(state);
 }
 
@@ -471,7 +471,7 @@ struct dvb_frontend* cx22702_attach(const struct cx22702_config* config,
 	struct cx22702_state* state = NULL;
 
 	/* allocate memory for the internal state */
-	state = (struct cx22702_state*) kmalloc(sizeof(struct cx22702_state), GFP_KERNEL);
+	state = kmalloc(sizeof(struct cx22702_state), GFP_KERNEL);
 	if (state == NULL) goto error;
 
 	/* setup the state */
diff --git a/drivers/media/dvb/frontends/cx24110.c b/drivers/media/dvb/frontends/cx24110.c
index ae16112a065..8222b88cb48 100644
--- a/drivers/media/dvb/frontends/cx24110.c
+++ b/drivers/media/dvb/frontends/cx24110.c
@@ -315,7 +315,7 @@ dprintk("cx24110 debug: entering %s(%d)\n",__FUNCTION__,srate);
 
 int cx24110_pll_write (struct dvb_frontend* fe, u32 data)
 {
-	struct cx24110_state *state = (struct cx24110_state*) fe->demodulator_priv;
+	struct cx24110_state *state = fe->demodulator_priv;
 
 /* tuner data is 21 bits long, must be left-aligned in data */
 /* tuner cx24108 is written through a dedicated 3wire interface on the demod chip */
@@ -356,7 +356,7 @@ int cx24110_pll_write (struct dvb_frontend* fe, u32 data)
 
 static int cx24110_initfe(struct dvb_frontend* fe)
 {
-	struct cx24110_state *state = (struct cx24110_state*) fe->demodulator_priv;
+	struct cx24110_state *state = fe->demodulator_priv;
 /* fixme (low): error handling */
         int i;
 
@@ -373,7 +373,7 @@ static int cx24110_initfe(struct dvb_frontend* fe)
 
 static int cx24110_set_voltage (struct dvb_frontend* fe, fe_sec_voltage_t voltage)
 {
-	struct cx24110_state *state = (struct cx24110_state*) fe->demodulator_priv;
+	struct cx24110_state *state = fe->demodulator_priv;
 
 	switch (voltage) {
 	case SEC_VOLTAGE_13:
@@ -385,8 +385,7 @@ static int cx24110_set_voltage (struct dvb_frontend* fe, fe_sec_voltage_t voltag
 	};
 }
 
-static int cx24110_diseqc_send_burst(struct dvb_frontend* fe,
-			fe_sec_mini_cmd_t burst)
+static int cx24110_diseqc_send_burst(struct dvb_frontend* fe, fe_sec_mini_cmd_t burst)
 {
 	int rv, bit, i;
 	struct cx24110_state *state = fe->demodulator_priv;
@@ -413,7 +412,7 @@ static int cx24110_send_diseqc_msg(struct dvb_frontend* fe,
 				   struct dvb_diseqc_master_cmd *cmd)
 {
 	int i, rv;
-	struct cx24110_state *state = (struct cx24110_state*) fe->demodulator_priv;
+	struct cx24110_state *state = fe->demodulator_priv;
 
 	for (i = 0; i < cmd->msg_len; i++)
 		cx24110_writereg(state, 0x79 + i, cmd->msg[i]);
@@ -432,7 +431,7 @@ static int cx24110_send_diseqc_msg(struct dvb_frontend* fe,
 
 static int cx24110_read_status(struct dvb_frontend* fe, fe_status_t* status)
 {
-	struct cx24110_state *state = (struct cx24110_state*) fe->demodulator_priv;
+	struct cx24110_state *state = fe->demodulator_priv;
 
 	int sync = cx24110_readreg (state, 0x55);
 
@@ -460,7 +459,7 @@ static int cx24110_read_status(struct dvb_frontend* fe, fe_status_t* status)
 
 static int cx24110_read_ber(struct dvb_frontend* fe, u32* ber)
 {
-	struct cx24110_state *state = (struct cx24110_state*) fe->demodulator_priv;
+	struct cx24110_state *state = fe->demodulator_priv;
 
 	/* fixme (maybe): value range is 16 bit. Scale? */
 	if(cx24110_readreg(state,0x24)&0x10) {
@@ -478,7 +477,7 @@ static int cx24110_read_ber(struct dvb_frontend* fe, u32* ber)
 
 static int cx24110_read_signal_strength(struct dvb_frontend* fe, u16* signal_strength)
 {
-	struct cx24110_state *state = (struct cx24110_state*) fe->demodulator_priv;
+	struct cx24110_state *state = fe->demodulator_priv;
 
 /* no provision in hardware. Read the frontend AGC accumulator. No idea how to scale this, but I know it is 2s complement */
 	u8 signal = cx24110_readreg (state, 0x27)+128;
@@ -489,7 +488,7 @@ static int cx24110_read_signal_strength(struct dvb_frontend* fe, u16* signal_str
 
 static int cx24110_read_snr(struct dvb_frontend* fe, u16* snr)
 {
-	struct cx24110_state *state = (struct cx24110_state*) fe->demodulator_priv;
+	struct cx24110_state *state = fe->demodulator_priv;
 
 	/* no provision in hardware. Can be computed from the Es/N0 estimator, but I don't know how. */
 	if(cx24110_readreg(state,0x6a)&0x80) {
@@ -505,7 +504,7 @@ static int cx24110_read_snr(struct dvb_frontend* fe, u16* snr)
 
 static int cx24110_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
 {
-	struct cx24110_state *state = (struct cx24110_state*) fe->demodulator_priv;
+	struct cx24110_state *state = fe->demodulator_priv;
 	u32 lastbyer;
 
 	if(cx24110_readreg(state,0x10)&0x40) {
@@ -527,7 +526,7 @@ static int cx24110_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
 
 static int cx24110_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
 {
-	struct cx24110_state *state = (struct cx24110_state*) fe->demodulator_priv;
+	struct cx24110_state *state = fe->demodulator_priv;
 
 	state->config->pll_set(fe, p);
 	cx24110_set_inversion (state, p->inversion);
@@ -540,7 +539,7 @@ static int cx24110_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_par
 
 static int cx24110_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
 {
-	struct cx24110_state *state = (struct cx24110_state*) fe->demodulator_priv;
+	struct cx24110_state *state = fe->demodulator_priv;
 	s32 afc; unsigned sclk;
 
 /* cannot read back tuner settings (freq). Need to have some private storage */
@@ -567,14 +566,14 @@ static int cx24110_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_par
 
 static int cx24110_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
 {
-	struct cx24110_state *state = (struct cx24110_state*) fe->demodulator_priv;
+	struct cx24110_state *state = fe->demodulator_priv;
 
 	return cx24110_writereg(state,0x76,(cx24110_readreg(state,0x76)&~0x10)|(((tone==SEC_TONE_ON))?0x10:0));
 }
 
 static void cx24110_release(struct dvb_frontend* fe)
 {
-	struct cx24110_state* state = (struct cx24110_state*) fe->demodulator_priv;
+	struct cx24110_state* state = fe->demodulator_priv;
 	kfree(state);
 }
 
@@ -587,7 +586,7 @@ struct dvb_frontend* cx24110_attach(const struct cx24110_config* config,
 	int ret;
 
 	/* allocate memory for the internal state */
-	state = (struct cx24110_state*) kmalloc(sizeof(struct cx24110_state), GFP_KERNEL);
+	state = kmalloc(sizeof(struct cx24110_state), GFP_KERNEL);
 	if (state == NULL) goto error;
 
 	/* setup the state */
diff --git a/drivers/media/dvb/frontends/dib3000mb.c b/drivers/media/dvb/frontends/dib3000mb.c
index a853d12a26f..f2fbb7c1598 100644
--- a/drivers/media/dvb/frontends/dib3000mb.c
+++ b/drivers/media/dvb/frontends/dib3000mb.c
@@ -56,7 +56,7 @@ static int dib3000mb_get_frontend(struct dvb_frontend* fe,
 static int dib3000mb_set_frontend(struct dvb_frontend* fe,
 				  struct dvb_frontend_parameters *fep, int tuner)
 {
-	struct dib3000_state* state = (struct dib3000_state*) fe->demodulator_priv;
+	struct dib3000_state* state = fe->demodulator_priv;
 	struct dvb_ofdm_parameters *ofdm = &fep->u.ofdm;
 	fe_code_rate_t fe_cr = FEC_NONE;
 	int search_state, seq;
@@ -317,7 +317,7 @@ static int dib3000mb_set_frontend(struct dvb_frontend* fe,
 
 static int dib3000mb_fe_init(struct dvb_frontend* fe, int mobile_mode)
 {
-	struct dib3000_state* state = (struct dib3000_state*) fe->demodulator_priv;
+	struct dib3000_state* state = fe->demodulator_priv;
 
 	deb_info("dib3000mb is getting up.\n");
 	wr(DIB3000MB_REG_POWER_CONTROL, DIB3000MB_POWER_UP);
@@ -401,7 +401,7 @@ static int dib3000mb_fe_init(struct dvb_frontend* fe, int mobile_mode)
 static int dib3000mb_get_frontend(struct dvb_frontend* fe,
 				  struct dvb_frontend_parameters *fep)
 {
-	struct dib3000_state* state = (struct dib3000_state*) fe->demodulator_priv;
+	struct dib3000_state* state = fe->demodulator_priv;
 	struct dvb_ofdm_parameters *ofdm = &fep->u.ofdm;
 	fe_code_rate_t *cr;
 	u16 tps_val;
@@ -562,7 +562,7 @@ static int dib3000mb_get_frontend(struct dvb_frontend* fe,
 
 static int dib3000mb_read_status(struct dvb_frontend* fe, fe_status_t *stat)
 {
-	struct dib3000_state* state = (struct dib3000_state*) fe->demodulator_priv;
+	struct dib3000_state* state = fe->demodulator_priv;
 
 	*stat = 0;
 
@@ -594,7 +594,7 @@ static int dib3000mb_read_status(struct dvb_frontend* fe, fe_status_t *stat)
 
 static int dib3000mb_read_ber(struct dvb_frontend* fe, u32 *ber)
 {
-	struct dib3000_state* state = (struct dib3000_state*) fe->demodulator_priv;
+	struct dib3000_state* state = fe->demodulator_priv;
 
 	*ber = ((rd(DIB3000MB_REG_BER_MSB) << 16) | rd(DIB3000MB_REG_BER_LSB));
 	return 0;
@@ -603,7 +603,7 @@ static int dib3000mb_read_ber(struct dvb_frontend* fe, u32 *ber)
 /* see dib3000-watch dvb-apps for exact calcuations of signal_strength and snr */
 static int dib3000mb_read_signal_strength(struct dvb_frontend* fe, u16 *strength)
 {
-	struct dib3000_state* state = (struct dib3000_state*) fe->demodulator_priv;
+	struct dib3000_state* state = fe->demodulator_priv;
 
 	*strength = rd(DIB3000MB_REG_SIGNAL_POWER) * 0xffff / 0x170;
 	return 0;
@@ -611,7 +611,7 @@ static int dib3000mb_read_signal_strength(struct dvb_frontend* fe, u16 *strength
 
 static int dib3000mb_read_snr(struct dvb_frontend* fe, u16 *snr)
 {
-	struct dib3000_state* state = (struct dib3000_state*) fe->demodulator_priv;
+	struct dib3000_state* state = fe->demodulator_priv;
 	short sigpow = rd(DIB3000MB_REG_SIGNAL_POWER);
 	int icipow = ((rd(DIB3000MB_REG_NOISE_POWER_MSB) & 0xff) << 16) |
 		rd(DIB3000MB_REG_NOISE_POWER_LSB);
@@ -621,7 +621,7 @@ static int dib3000mb_read_snr(struct dvb_frontend* fe, u16 *snr)
 
 static int dib3000mb_read_unc_blocks(struct dvb_frontend* fe, u32 *unc)
 {
-	struct dib3000_state* state = (struct dib3000_state*) fe->demodulator_priv;
+	struct dib3000_state* state = fe->demodulator_priv;
 
 	*unc = rd(DIB3000MB_REG_UNC);
 	return 0;
@@ -629,7 +629,7 @@ static int dib3000mb_read_unc_blocks(struct dvb_frontend* fe, u32 *unc)
 
 static int dib3000mb_sleep(struct dvb_frontend* fe)
 {
-	struct dib3000_state* state = (struct dib3000_state*) fe->demodulator_priv;
+	struct dib3000_state* state = fe->demodulator_priv;
 	deb_info("dib3000mb is going to bed.\n");
 	wr(DIB3000MB_REG_POWER_CONTROL, DIB3000MB_POWER_DOWN);
 	return 0;
@@ -656,7 +656,7 @@ static int dib3000mb_set_frontend_and_tuner(struct dvb_frontend* fe, struct dvb_
 
 static void dib3000mb_release(struct dvb_frontend* fe)
 {
-	struct dib3000_state *state = (struct dib3000_state*) fe->demodulator_priv;
+	struct dib3000_state *state = fe->demodulator_priv;
 	kfree(state);
 }
 
@@ -671,7 +671,7 @@ static int dib3000mb_pid_control(struct dvb_frontend *fe,int index, int pid,int
 
 static int dib3000mb_fifo_control(struct dvb_frontend *fe, int onoff)
 {
-	struct dib3000_state *state = (struct dib3000_state*) fe->demodulator_priv;
+	struct dib3000_state *state = fe->demodulator_priv;
 
 	deb_xfer("%s fifo\n",onoff ? "enabling" : "disabling");
 	if (onoff) {
@@ -692,7 +692,7 @@ static int dib3000mb_pid_parse(struct dvb_frontend *fe, int onoff)
 
 static int dib3000mb_tuner_pass_ctrl(struct dvb_frontend *fe, int onoff, u8 pll_addr)
 {
-	struct dib3000_state *state = (struct dib3000_state*) fe->demodulator_priv;
+	struct dib3000_state *state = fe->demodulator_priv;
 	if (onoff) {
 		wr(DIB3000MB_REG_TUNER, DIB3000_TUNER_WRITE_ENABLE(pll_addr));
 	} else {
@@ -709,7 +709,7 @@ struct dvb_frontend* dib3000mb_attach(const struct dib3000_config* config,
 	struct dib3000_state* state = NULL;
 
 	/* allocate memory for the internal state */
-	state = (struct dib3000_state*) kmalloc(sizeof(struct dib3000_state), GFP_KERNEL);
+	state = kmalloc(sizeof(struct dib3000_state), GFP_KERNEL);
 	if (state == NULL)
 		goto error;
 	memset(state,0,sizeof(struct dib3000_state));
diff --git a/drivers/media/dvb/frontends/dib3000mc.c b/drivers/media/dvb/frontends/dib3000mc.c
index 4a31c05eaec..bb0abdc78f3 100644
--- a/drivers/media/dvb/frontends/dib3000mc.c
+++ b/drivers/media/dvb/frontends/dib3000mc.c
@@ -297,7 +297,7 @@ static int dib3000mc_set_general_cfg(struct dib3000_state *state, struct dvb_fro
 static int dib3000mc_get_frontend(struct dvb_frontend* fe,
 				  struct dvb_frontend_parameters *fep)
 {
-	struct dib3000_state* state = (struct dib3000_state*) fe->demodulator_priv;
+	struct dib3000_state* state = fe->demodulator_priv;
 	struct dvb_ofdm_parameters *ofdm = &fep->u.ofdm;
 	fe_code_rate_t *cr;
 	u16 tps_val,cr_val;
@@ -458,7 +458,7 @@ static int dib3000mc_get_frontend(struct dvb_frontend* fe,
 static int dib3000mc_set_frontend(struct dvb_frontend* fe,
 				  struct dvb_frontend_parameters *fep, int tuner)
 {
-	struct dib3000_state* state = (struct dib3000_state*) fe->demodulator_priv;
+	struct dib3000_state* state = fe->demodulator_priv;
 	struct dvb_ofdm_parameters *ofdm = &fep->u.ofdm;
 	int search_state,auto_val;
 	u16 val;
@@ -659,7 +659,7 @@ static int dib3000mc_fe_init(struct dvb_frontend* fe, int mobile_mode)
 }
 static int dib3000mc_read_status(struct dvb_frontend* fe, fe_status_t *stat)
 {
-	struct dib3000_state* state = (struct dib3000_state*) fe->demodulator_priv;
+	struct dib3000_state* state = fe->demodulator_priv;
 	u16 lock = rd(DIB3000MC_REG_LOCKING);
 
 	*stat = 0;
@@ -679,14 +679,14 @@ static int dib3000mc_read_status(struct dvb_frontend* fe, fe_status_t *stat)
 
 static int dib3000mc_read_ber(struct dvb_frontend* fe, u32 *ber)
 {
-	struct dib3000_state* state = (struct dib3000_state*) fe->demodulator_priv;
+	struct dib3000_state* state = fe->demodulator_priv;
 	*ber = ((rd(DIB3000MC_REG_BER_MSB) << 16) | rd(DIB3000MC_REG_BER_LSB));
 	return 0;
 }
 
 static int dib3000mc_read_unc_blocks(struct dvb_frontend* fe, u32 *unc)
 {
-	struct dib3000_state* state = (struct dib3000_state*) fe->demodulator_priv;
+	struct dib3000_state* state = fe->demodulator_priv;
 
 	*unc = rd(DIB3000MC_REG_PACKET_ERROR_COUNT);
 	return 0;
@@ -695,7 +695,7 @@ static int dib3000mc_read_unc_blocks(struct dvb_frontend* fe, u32 *unc)
 /* see dib3000mb.c for calculation comments */
 static int dib3000mc_read_signal_strength(struct dvb_frontend* fe, u16 *strength)
 {
-	struct dib3000_state* state = (struct dib3000_state*) fe->demodulator_priv;
+	struct dib3000_state* state = fe->demodulator_priv;
 	u16 val = rd(DIB3000MC_REG_SIGNAL_NOISE_LSB);
 	*strength = (((val >> 6) & 0xff) << 8) + (val & 0x3f);
 
@@ -706,7 +706,7 @@ static int dib3000mc_read_signal_strength(struct dvb_frontend* fe, u16 *strength
 /* see dib3000mb.c for calculation comments */
 static int dib3000mc_read_snr(struct dvb_frontend* fe, u16 *snr)
 {
-	struct dib3000_state* state = (struct dib3000_state*) fe->demodulator_priv;
+	struct dib3000_state* state = fe->demodulator_priv;
 	u16 val = rd(DIB3000MC_REG_SIGNAL_NOISE_LSB),
 		val2 = rd(DIB3000MC_REG_SIGNAL_NOISE_MSB);
 	u16 sig,noise;
@@ -726,7 +726,7 @@ static int dib3000mc_read_snr(struct dvb_frontend* fe, u16 *snr)
 
 static int dib3000mc_sleep(struct dvb_frontend* fe)
 {
-	struct dib3000_state* state = (struct dib3000_state*) fe->demodulator_priv;
+	struct dib3000_state* state = fe->demodulator_priv;
 
 	set_or(DIB3000MC_REG_CLK_CFG_7,DIB3000MC_CLK_CFG_7_PWR_DOWN);
 	wr(DIB3000MC_REG_CLK_CFG_1,DIB3000MC_CLK_CFG_1_POWER_DOWN);
@@ -756,7 +756,7 @@ static int dib3000mc_set_frontend_and_tuner(struct dvb_frontend* fe, struct dvb_
 
 static void dib3000mc_release(struct dvb_frontend* fe)
 {
-	struct dib3000_state *state = (struct dib3000_state *) fe->demodulator_priv;
+	struct dib3000_state *state = fe->demodulator_priv;
 	kfree(state);
 }
 
@@ -771,7 +771,7 @@ static int dib3000mc_pid_control(struct dvb_frontend *fe,int index, int pid,int
 
 static int dib3000mc_fifo_control(struct dvb_frontend *fe, int onoff)
 {
-	struct dib3000_state *state = (struct dib3000_state*) fe->demodulator_priv;
+	struct dib3000_state *state = fe->demodulator_priv;
 	u16 tmp = rd(DIB3000MC_REG_SMO_MODE);
 
 	deb_xfer("%s fifo\n",onoff ? "enabling" : "disabling");
@@ -803,7 +803,7 @@ static int dib3000mc_pid_parse(struct dvb_frontend *fe, int onoff)
 
 static int dib3000mc_tuner_pass_ctrl(struct dvb_frontend *fe, int onoff, u8 pll_addr)
 {
-	struct dib3000_state *state = (struct dib3000_state*) fe->demodulator_priv;
+	struct dib3000_state *state = fe->demodulator_priv;
 	if (onoff) {
 		wr(DIB3000MC_REG_TUNER, DIB3000_TUNER_WRITE_ENABLE(pll_addr));
 	} else {
@@ -844,7 +844,7 @@ struct dvb_frontend* dib3000mc_attach(const struct dib3000_config* config,
 	u16 devid;
 
 	/* allocate memory for the internal state */
-	state = (struct dib3000_state*) kmalloc(sizeof(struct dib3000_state), GFP_KERNEL);
+	state = kmalloc(sizeof(struct dib3000_state), GFP_KERNEL);
 	if (state == NULL)
 		goto error;
 	memset(state,0,sizeof(struct dib3000_state));
diff --git a/drivers/media/dvb/frontends/dvb_dummy_fe.c b/drivers/media/dvb/frontends/dvb_dummy_fe.c
index c05a9b05600..cff93b9d8ab 100644
--- a/drivers/media/dvb/frontends/dvb_dummy_fe.c
+++ b/drivers/media/dvb/frontends/dvb_dummy_fe.c
@@ -100,7 +100,7 @@ static int dvb_dummy_fe_set_voltage(struct dvb_frontend* fe, fe_sec_voltage_t vo
 
 static void dvb_dummy_fe_release(struct dvb_frontend* fe)
 {
-	struct dvb_dummy_fe_state* state = (struct dvb_dummy_fe_state*) fe->demodulator_priv;
+	struct dvb_dummy_fe_state* state = fe->demodulator_priv;
 	kfree(state);
 }
 
@@ -111,7 +111,7 @@ struct dvb_frontend* dvb_dummy_fe_ofdm_attach(void)
 	struct dvb_dummy_fe_state* state = NULL;
 
 	/* allocate memory for the internal state */
-	state = (struct dvb_dummy_fe_state*) kmalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
+	state = kmalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
 	if (state == NULL) goto error;
 
 	/* setup the state */
@@ -134,7 +134,7 @@ struct dvb_frontend* dvb_dummy_fe_qpsk_attach()
 	struct dvb_dummy_fe_state* state = NULL;
 
 	/* allocate memory for the internal state */
-	state = (struct dvb_dummy_fe_state*) kmalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
+	state = kmalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
 	if (state == NULL) goto error;
 
 	/* setup the state */
@@ -157,7 +157,7 @@ struct dvb_frontend* dvb_dummy_fe_qam_attach()
 	struct dvb_dummy_fe_state* state = NULL;
 
 	/* allocate memory for the internal state */
-	state = (struct dvb_dummy_fe_state*) kmalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
+	state = kmalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
 	if (state == NULL) goto error;
 
 	/* setup the state */
diff --git a/drivers/media/dvb/frontends/l64781.c b/drivers/media/dvb/frontends/l64781.c
index 9ac95de9834..031a1ddc7d1 100644
--- a/drivers/media/dvb/frontends/l64781.c
+++ b/drivers/media/dvb/frontends/l64781.c
@@ -121,7 +121,7 @@ static int reset_and_configure (struct l64781_state* state)
 
 static int apply_frontend_param (struct dvb_frontend* fe, struct dvb_frontend_parameters *param)
 {
-	struct l64781_state* state = (struct l64781_state*) fe->demodulator_priv;
+	struct l64781_state* state = fe->demodulator_priv;
 	/* The coderates for FEC_NONE, FEC_4_5 and FEC_FEC_6_7 are arbitrary */
 	static const u8 fec_tab[] = { 7, 0, 1, 2, 9, 3, 10, 4 };
 	/* QPSK, QAM_16, QAM_64 */
@@ -234,7 +234,7 @@ static int apply_frontend_param (struct dvb_frontend* fe, struct dvb_frontend_pa
 
 static int get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters* param)
 {
-	struct l64781_state* state = (struct l64781_state*) fe->demodulator_priv;
+	struct l64781_state* state = fe->demodulator_priv;
 	int tmp;
 
 
@@ -352,7 +352,7 @@ static int get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters*
 
 static int l64781_read_status(struct dvb_frontend* fe, fe_status_t* status)
 {
-	struct l64781_state* state = (struct l64781_state*) fe->demodulator_priv;
+	struct l64781_state* state = fe->demodulator_priv;
 	int sync = l64781_readreg (state, 0x32);
 	int gain = l64781_readreg (state, 0x0e);
 
@@ -381,7 +381,7 @@ static int l64781_read_status(struct dvb_frontend* fe, fe_status_t* status)
 
 static int l64781_read_ber(struct dvb_frontend* fe, u32* ber)
 {
-	struct l64781_state* state = (struct l64781_state*) fe->demodulator_priv;
+	struct l64781_state* state = fe->demodulator_priv;
 
 	/*   XXX FIXME: set up counting period (reg 0x26...0x28)
 	 */
@@ -393,7 +393,7 @@ static int l64781_read_ber(struct dvb_frontend* fe, u32* ber)
 
 static int l64781_read_signal_strength(struct dvb_frontend* fe, u16* signal_strength)
 {
-	struct l64781_state* state = (struct l64781_state*) fe->demodulator_priv;
+	struct l64781_state* state = fe->demodulator_priv;
 
 	u8 gain = l64781_readreg (state, 0x0e);
 	*signal_strength = (gain << 8) | gain;
@@ -403,7 +403,7 @@ static int l64781_read_signal_strength(