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flash: Additional check for NULL in str9xpec enable_turbo 

Change-Id: Ifde8783b27c64e4a4bbea180cfa2c86f6a9fe49a
Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk>
Reviewed-on: http://openocd.zylin.com/496
Tested-by: jenkins
Reviewed-by: Øyvind Harboe <oyvindharboe@gmail.com>
This commit is contained in:
Fredrik Hederstierna 2012-02-29 10:16:27 +00:00 committed by Spencer Oliver
parent dfe8f3a441
commit 5c5af2467b
1 changed files with 8 additions and 5 deletions
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13
src/flash/nor/str9xpec.c
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@ -199,7 +199,6 @@ static int str9xpec_read_config(struct flash_bank *bank)
field.out_value = NULL;
field.in_value = str9xpec_info->options;
jtag_add_dr_scan(tap, 1, &field, TAP_IDLE);
jtag_execute_queue();
@ -1050,20 +1049,24 @@ COMMAND_HANDLER(str9xpec_handle_flash_enable_turbo_command)
str9xpec_info = bank->driver_priv;
tap0 = str9xpec_info->tap;
/* remove arm core from chain - enter turbo mode */
tap0 = str9xpec_info->tap;
if (tap0 == NULL) {
/* things are *WRONG* */
command_print(CMD_CTX, "**STR9FLASH** (tap0) invalid chain?");
return ERROR_FAIL;
}
tap1 = tap0->next_tap;
if (tap1 == NULL) {
/* things are *WRONG* */
command_print(CMD_CTX, "**STR9FLASH** (tap1) invalid chain?");
return ERROR_OK;
return ERROR_FAIL;
}
tap2 = tap1->next_tap;
if (tap2 == NULL) {
/* things are *WRONG* */
command_print(CMD_CTX, "**STR9FLASH** (tap2) invalid chain?");
return ERROR_OK;
return ERROR_FAIL;
}
/* enable turbo mode - TURBO-PROG-ENABLE */