jtag/aice: fix clang static analyzer warnings

Change-Id: I6c801c2406cd117f2bcf930a5b329c441ab5f1ff
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: http://openocd.zylin.com/5368
Tested-by: jenkins
Reviewed-by: Oleksij Rempel <linux@rempel-privat.de>

2 files changed, 15 insertions, 12 deletions

diff --git a/src/jtag/aice/aice_transport.c b/src/jtag/aice/aice_transport.c
index 15ebcac9..682c6698 100644
--- a/src/jtag/aice/aice_transport.c
+++ b/src/jtag/aice/aice_transport.c
@@ -47,6 +47,7 @@ static int jim_newtap_expected_id(Jim_Nvp *n, Jim_GetOptInfo *goi,
 		return JIM_ERR;
 	}
 
+	assert(pTap->expected_ids);
 	memcpy(new_expected_ids, pTap->expected_ids, expected_len);
 
 	new_expected_ids[pTap->expected_ids_cnt] = w;
diff --git a/src/jtag/aice/aice_usb.c b/src/jtag/aice/aice_usb.c
index 5fefdd0b..a5cccfef 100644
--- a/src/jtag/aice/aice_usb.c
+++ b/src/jtag/aice/aice_usb.c
@@ -484,7 +484,9 @@ static int aice_usb_packet_flush(void)
 
 		i = 0;
 		while (1) {
-			aice_read_ctrl(AICE_READ_CTRL_BATCH_STATUS, &batch_status);
+			int retval = aice_read_ctrl(AICE_READ_CTRL_BATCH_STATUS, &batch_status);
+			if (retval != ERROR_OK)
+				return retval;
 
 			if (batch_status & 0x1)
 				return ERROR_OK;
@@ -1797,8 +1799,8 @@ static int aice_write_reg(uint32_t coreid, uint32_t num, uint32_t val);
 
 static int check_suppressed_exception(uint32_t coreid, uint32_t dbger_value)
 {
-	uint32_t ir4_value;
-	uint32_t ir6_value;
+	uint32_t ir4_value = 0;
+	uint32_t ir6_value = 0;
 	/* the default value of handling_suppressed_exception is false */
 	static bool handling_suppressed_exception;
 
@@ -1852,7 +1854,7 @@ static int check_privilege(uint32_t coreid, uint32_t dbger_value)
 static int aice_check_dbger(uint32_t coreid, uint32_t expect_status)
 {
 	uint32_t i = 0;
-	uint32_t value_dbger;
+	uint32_t value_dbger = 0;
 
 	while (1) {
 		aice_read_misc(coreid, NDS_EDM_MISC_DBGER, &value_dbger);
@@ -1973,7 +1975,7 @@ static int aice_read_reg(uint32_t coreid, uint32_t num, uint32_t *val)
 
 	aice_execute_dim(coreid, instructions, 4);
 
-	uint32_t value_edmsw;
+	uint32_t value_edmsw = 0;
 	aice_read_edmsr(coreid, NDS_EDM_SR_EDMSW, &value_edmsw);
 	if (value_edmsw & NDS_EDMSW_WDV)
 		aice_read_dtr(coreid, val);
@@ -2018,7 +2020,7 @@ static int aice_write_reg(uint32_t coreid, uint32_t num, uint32_t val)
 	LOG_DEBUG("aice_write_reg, reg_no: 0x%08" PRIx32 ", value: 0x%08" PRIx32, num, val);
 
 	uint32_t instructions[4]; /** execute instructions in DIM */
-	uint32_t value_edmsw;
+	uint32_t value_edmsw = 0;
 
 	aice_write_dtr(coreid, val);
 	aice_read_edmsr(coreid, NDS_EDM_SR_EDMSW, &value_edmsw);
@@ -2447,7 +2449,7 @@ static int aice_backup_tmp_registers(uint32_t coreid)
 	LOG_DEBUG("backup_tmp_registers -");
 
 	/* backup target DTR first(if the target DTR is valid) */
-	uint32_t value_edmsw;
+	uint32_t value_edmsw = 0;
 	aice_read_edmsr(coreid, NDS_EDM_SR_EDMSW, &value_edmsw);
 	core_info[coreid].edmsw_backup = value_edmsw;
 	if (value_edmsw & 0x1) { /* EDMSW.WDV == 1 */
@@ -2614,13 +2616,13 @@ static int aice_usb_halt(uint32_t coreid)
 	aice_init_edm_registers(coreid, false);
 
 	/** Clear EDM_CTL.DBGIM & EDM_CTL.DBGACKM */
-	uint32_t edm_ctl_value;
+	uint32_t edm_ctl_value = 0;
 	aice_read_edmsr(coreid, NDS_EDM_SR_EDM_CTL, &edm_ctl_value);
 	if (edm_ctl_value & 0x3)
 		aice_write_edmsr(coreid, NDS_EDM_SR_EDM_CTL, edm_ctl_value & ~(0x3));
 
-	uint32_t dbger;
-	uint32_t acc_ctl_value;
+	uint32_t dbger = 0;
+	uint32_t acc_ctl_value = 0;
 
 	core_info[coreid].debug_under_dex_on = false;
 	aice_read_misc(coreid, NDS_EDM_MISC_DBGER, &dbger);
@@ -2661,7 +2663,7 @@ static int aice_usb_halt(uint32_t coreid)
 			 * it is only for debugging 'debug exception handler' purpose.
 			 * after openocd detaches from target, target behavior is
 			 * undefined. */
-			uint32_t ir0_value;
+			uint32_t ir0_value = 0;
 			uint32_t debug_mode_ir0_value;
 			aice_read_reg(coreid, IR0, &ir0_value);
 			debug_mode_ir0_value = ir0_value | 0x408; /* turn on DEX, set POM = 1 */
@@ -4029,7 +4031,7 @@ static int aice_usb_profiling(uint32_t coreid, uint32_t interval, uint32_t itera
 
 		/* check status */
 		uint32_t i;
-		uint32_t batch_status;
+		uint32_t batch_status = 0;
 
 		i = 0;
 		while (1) {