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flash/stm32l4x: free write_algorithm work area if no space left for the buffer 

If the remaining memory for the buffer is less than 256 bytes,
the memory allocated for the write algorithm in the target is not freed.

Fixes: ba131f30a0 (Flash driver for STM32G0xx and STM32G4xx)
Change-Id: Ic649f6c39799d76725b0c69ff3a009a3f510e17f
Signed-off-by: Tarek BOCHKATI <tarek.bouchkati@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/6486
Tested-by: jenkins
Reviewed-by: Oleksij Rempel <linux@rempel-privat.de>
This commit is contained in:
Tarek BOCHKATI 2021-08-29 16:02:58 +01:00 committed by Oleksij Rempel
parent c2ad18d68b
commit c281c64469
1 changed files with 1 additions and 0 deletions
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src/flash/nor/stm32l4x.c
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@ -1353,6 +1353,7 @@ static int stm32l4_write_block(struct flash_bank *bank, const uint8_t *buffer,
buffer_size = target_get_working_area_avail(target) & ~(2 * sizeof(uint32_t) - 1);
if (buffer_size < 256) {
LOG_WARNING("large enough working area not available, can't do block memory writes");
target_free_working_area(target, write_algorithm);
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
} else if (buffer_size > 16384) {
/* probably won't benefit from more than 16k ... */