mips: mips_ejtag_get_impcode error propagation added

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>

src/target/mips_ejtag.c

@@ -261,8 +261,11 @@ int mips_ejtag_read_debug(struct mips_ejtag *ejtag_info, uint32_t* debug_reg)
 int mips_ejtag_init(struct mips_ejtag *ejtag_info)
 {
 	uint32_t ejtag_version;
+	int retval;
 
-	mips_ejtag_get_impcode(ejtag_info, &ejtag_info->impcode);
+	retval = mips_ejtag_get_impcode(ejtag_info, &ejtag_info->impcode);
+	if (retval != ERROR_OK)
+		return retval;
 	LOG_DEBUG("impcode: 0x%8.8" PRIx32 "", ejtag_info->impcode);
 
 	/* get ejtag version */

src/target/mips_m4k.c

@@ -940,7 +940,9 @@ static int mips_m4k_examine(struct target *target)
 
 	if (!target_was_examined(target))
 	{
-		mips_ejtag_get_idcode(ejtag_info, &idcode);
+		retval = mips_ejtag_get_idcode(ejtag_info, &idcode);
+		if (retval != ERROR_OK)
+			return retval;
 		ejtag_info->idcode = idcode;
 
 		if (((idcode >> 1) & 0x7FF) == 0x29)