diff options
Diffstat (limited to 'sound/oss/dmasound/dmasound_q40.c')
| -rw-r--r-- | sound/oss/dmasound/dmasound_q40.c | 26 |
1 files changed, 15 insertions, 11 deletions
diff --git a/sound/oss/dmasound/dmasound_q40.c b/sound/oss/dmasound/dmasound_q40.c index e2081f32b0c..99bcb21c228 100644 --- a/sound/oss/dmasound/dmasound_q40.c +++ b/sound/oss/dmasound/dmasound_q40.c @@ -48,8 +48,8 @@ static int Q40SetFormat(int format); static int Q40SetVolume(int volume); static void Q40PlayNextFrame(int index); static void Q40Play(void); -static irqreturn_t Q40StereoInterrupt(int irq, void *dummy, struct pt_regs *fp); -static irqreturn_t Q40MonoInterrupt(int irq, void *dummy, struct pt_regs *fp); +static irqreturn_t Q40StereoInterrupt(int irq, void *dummy); +static irqreturn_t Q40MonoInterrupt(int irq, void *dummy); static void Q40Interrupt(void); @@ -371,8 +371,9 @@ static void Q40Free(void *ptr, unsigned int size) static int __init Q40IrqInit(void) { /* Register interrupt handler. */ - request_irq(Q40_IRQ_SAMPLE, Q40StereoInterrupt, 0, - "DMA sound", Q40Interrupt); + if (request_irq(Q40_IRQ_SAMPLE, Q40StereoInterrupt, 0, + "DMA sound", Q40Interrupt)) + return 0; return(1); } @@ -401,6 +402,7 @@ static void Q40PlayNextFrame(int index) u_char *start; u_long size; u_char speed; + int error; /* used by Q40Play() if all doubts whether there really is something * to be played are already wiped out. @@ -419,11 +421,13 @@ static void Q40PlayNextFrame(int index) master_outb( 0,SAMPLE_ENABLE_REG); free_irq(Q40_IRQ_SAMPLE, Q40Interrupt); if (dmasound.soft.stereo) - request_irq(Q40_IRQ_SAMPLE, Q40StereoInterrupt, 0, - "Q40 sound", Q40Interrupt); + error = request_irq(Q40_IRQ_SAMPLE, Q40StereoInterrupt, 0, + "Q40 sound", Q40Interrupt); else - request_irq(Q40_IRQ_SAMPLE, Q40MonoInterrupt, 0, - "Q40 sound", Q40Interrupt); + error = request_irq(Q40_IRQ_SAMPLE, Q40MonoInterrupt, 0, + "Q40 sound", Q40Interrupt); + if (error && printk_ratelimit()) + pr_err("Couldn't register sound interrupt\n"); master_outb( speed, SAMPLE_RATE_REG); master_outb( 1,SAMPLE_CLEAR_REG); @@ -451,7 +455,7 @@ static void Q40Play(void) spin_unlock_irqrestore(&dmasound.lock, flags); } -static irqreturn_t Q40StereoInterrupt(int irq, void *dummy, struct pt_regs *fp) +static irqreturn_t Q40StereoInterrupt(int irq, void *dummy) { spin_lock(&dmasound.lock); if (q40_sc>1){ @@ -463,7 +467,7 @@ static irqreturn_t Q40StereoInterrupt(int irq, void *dummy, struct pt_regs *fp) spin_unlock(&dmasound.lock); return IRQ_HANDLED; } -static irqreturn_t Q40MonoInterrupt(int irq, void *dummy, struct pt_regs *fp) +static irqreturn_t Q40MonoInterrupt(int irq, void *dummy) { spin_lock(&dmasound.lock); if (q40_sc>0){ @@ -611,7 +615,7 @@ static MACHINE machQ40 = { /*** Config & Setup **********************************************************/ -int __init dmasound_q40_init(void) +static int __init dmasound_q40_init(void) { if (MACH_IS_Q40) { dmasound.mach = machQ40; |