flash/nor/mdr.c: fix uninitialised variable warning

Caught (actually, it's breaking the build) by clang 3.3.

Change-Id: Ife6fabf8a57e6c90ab45aaaf75557c984ac6772c
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/1875
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>

diff --git a/src/flash/nor/mdr.c b/src/flash/nor/mdr.c
index 3ecee1c84f779f0dc1e7fed03022884ab208815d..650abfd62d650e6c313ad4d8a0e5d3e7fa83d270 100644 (file)
--- a/src/flash/nor/mdr.c
+++ b/src/flash/nor/mdr.c
@@ -159,7 +159,7 @@ static int mdr_erase(struct flash_bank *bank, int first, int last)
 
        retval = target_write_u32(target, FLASH_KEY, KEY);
        if (retval != ERROR_OK)
-               goto reset_pg_and_lock;
+               return retval;
 
        retval = target_read_u32(target, FLASH_CMD, &flash_cmd);
        if (retval != ERROR_OK)
@@ -353,21 +353,22 @@ static int mdr_write(struct flash_bank *bank, uint8_t *buffer,
 
        retval = target_read_u32(target, MD_PER_CLOCK, &cur_per_clock);
        if (retval != ERROR_OK)
-               return retval;
+               goto free_buffer;
 
        if (!(cur_per_clock & MD_PER_CLOCK_RST_CLK)) {
                /* Something's very wrong if the RST_CLK module is not clocked */
                LOG_ERROR("Target needs reset before flash operations");
-               return ERROR_FLASH_OPERATION_FAILED;
+               retval = ERROR_FLASH_OPERATION_FAILED;
+               goto free_buffer;
        }
 
        retval = target_write_u32(target, MD_PER_CLOCK, cur_per_clock | MD_PER_CLOCK_EEPROM);
        if (retval != ERROR_OK)
-               return retval;
+               goto free_buffer;
 
        retval = target_write_u32(target, FLASH_KEY, KEY);
        if (retval != ERROR_OK)
-               goto reset_pg_and_lock;
+               goto free_buffer;
 
        retval = target_read_u32(target, FLASH_CMD, &flash_cmd);
        if (retval != ERROR_OK)
@@ -466,6 +467,7 @@ reset_pg_and_lock:
        if (retval == ERROR_OK)
                retval = retval2;
 
+free_buffer:
        if (new_buffer)
                free(new_buffer);