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stm32lx: don't allow part_info to be uninitialized 

It's possible for us to fail to read the part ID code so make sure that
part_info is initialized to NULL before attempting to do so, otherwise
we could proceed and use it uninitialized and then segfault.

Change-Id: I0a3f3d3947690b66f0981b5046340449521e0b33
Signed-off-by: Jack Peel <jack.peel@synapse.com>
Signed-off-by: Andrey Yurovsky <yurovsky@gmail.com>
Reviewed-on: http://openocd.zylin.com/2276
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
This commit is contained in:
Andrey Yurovsky 2014-08-28 11:54:29 -07:00 committed by Spencer Oliver
parent 45f01e0a12
commit 4efb3ebb76
1 changed files with 2 additions and 1 deletions
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3
src/flash/nor/stm32lx.c
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@ -214,7 +214,7 @@ FLASH_BANK_COMMAND_HANDLER(stm32lx_flash_bank_command)
return ERROR_COMMAND_SYNTAX_ERROR;
/* Create the bank structure */
stm32lx_info = malloc(sizeof(struct stm32lx_flash_bank));
stm32lx_info = calloc(1, sizeof(*stm32lx_info));
/* Check allocation */
if (stm32lx_info == NULL) {
@ -624,6 +624,7 @@ static int stm32lx_probe(struct flash_bank *bank)
uint32_t second_bank_base;
stm32lx_info->probed = 0;
stm32lx_info->part_info = NULL;
int retval = stm32lx_read_id_code(bank->target, &device_id);
if (retval != ERROR_OK)