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target,flash: allow target_free_working_area on NULL area pointer 

Standard C library free() allows NULL pointer as a parameter.

Change target_free_working_area() to conform this convention.

Remove NULL pointer tests before target_free_working_area() calls.

While on it add missing setting pointer to NULL after target_free_working_area().

Change-Id: I7c692ab04a9933398ba5bc614723ad0bdecb87b3
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: https://review.openocd.org/c/openocd/+/6712
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
This commit is contained in:
Tomas Vanek 2021-11-18 09:37:23 +01:00 committed by Antonio Borneo
parent 35f284fe7c
commit f735faa931
10 changed files with 35 additions and 35 deletions
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7
src/flash/nor/cc26xx.c
View File

@ -140,8 +140,9 @@ static int cc26xx_init(struct flash_bank *bank)
return retval;
/* Check for working area to use for flash helper algorithm */
if (cc26xx_bank->working_area)
target_free_working_area(target, cc26xx_bank->working_area);
target_free_working_area(target, cc26xx_bank->working_area);
cc26xx_bank->working_area = NULL;
retval = target_alloc_working_area(target, cc26xx_bank->algo_working_size,
&cc26xx_bank->working_area);
if (retval != ERROR_OK)
@ -158,6 +159,7 @@ static int cc26xx_init(struct flash_bank *bank)
LOG_ERROR("%s: Failed to load flash helper algorithm",
cc26xx_bank->family_name);
target_free_working_area(target, cc26xx_bank->working_area);
cc26xx_bank->working_area = NULL;
return retval;
}
@ -172,6 +174,7 @@ static int cc26xx_init(struct flash_bank *bank)
LOG_ERROR("%s: Failed to start flash helper algorithm",
cc26xx_bank->family_name);
target_free_working_area(target, cc26xx_bank->working_area);
cc26xx_bank->working_area = NULL;
return retval;
}

4
src/flash/nor/cfi.c
View File

@ -1359,9 +1359,7 @@ static int cfi_intel_write_block(struct flash_bank *bank, const uint8_t *buffer,
/* free up resources */
cleanup:
if (source)
target_free_working_area(target, source);
target_free_working_area(target, source);
target_free_working_area(target, write_algorithm);
destroy_reg_param(&reg_params[0]);

6
src/flash/nor/fespi.c
View File

@ -661,10 +661,8 @@ static int fespi_write(struct flash_bank *bank, const uint8_t *buffer,
return ERROR_OK;
err:
if (algorithm_wa) {
target_free_working_area(target, data_wa);
target_free_working_area(target, algorithm_wa);
}
target_free_working_area(target, data_wa);
target_free_working_area(target, algorithm_wa);
/* Switch to HW mode before return to prompt */
if (fespi_enable_hw_mode(bank) != ERROR_OK)

5
src/flash/nor/msp432.c
View File

@ -335,8 +335,9 @@ static int msp432_init(struct flash_bank *bank)
}
/* Check for working area to use for flash helper algorithm */
if (msp432_bank->working_area)
target_free_working_area(target, msp432_bank->working_area);
target_free_working_area(target, msp432_bank->working_area);
msp432_bank->working_area = NULL;
retval = target_alloc_working_area(target, ALGO_WORKING_SIZE,
&msp432_bank->working_area);
if (retval != ERROR_OK)

6
src/flash/nor/npcx.c
View File

@ -80,10 +80,8 @@ static int npcx_init(struct flash_bank *bank)
struct npcx_flash_bank *npcx_bank = bank->driver_priv;
/* Check for working area to use for flash helper algorithm */
if (npcx_bank->working_area) {
target_free_working_area(target, npcx_bank->working_area);
npcx_bank->working_area = NULL;
}
target_free_working_area(target, npcx_bank->working_area);
npcx_bank->working_area = NULL;
int retval = target_alloc_working_area(target, npcx_bank->algo_working_size,
&npcx_bank->working_area);

6
src/flash/nor/psoc6.c
View File

@ -182,10 +182,8 @@ destroy_rp_free_wa:
/* Something went wrong, do some cleanup */
destroy_reg_param(&reg_params);
if (g_stack_area) {
target_free_working_area(target, g_stack_area);
g_stack_area = NULL;
}
target_free_working_area(target, g_stack_area);
g_stack_area = NULL;
return hr;
}

11
src/flash/nor/sh_qspi.c
View File

@ -703,11 +703,14 @@ static int sh_qspi_upload_helper(struct flash_bank *bank)
};
int ret;
if (info->source)
target_free_working_area(target, info->source);
if (info->io_algorithm)
target_free_working_area(target, info->io_algorithm);
target_free_working_area(target, info->source);
target_free_working_area(target, info->io_algorithm);
/* FIXME: Working areas are allocated during flash probe
* and eventual target_free_all_working_areas() called in case
* of target reset or run is not handled at all.
* Not a big problem if area backp is off.
*/
/* flash write code */
if (target_alloc_working_area(target, sizeof(sh_qspi_io_code),
&info->io_algorithm) != ERROR_OK) {

5
src/target/riscv/riscv-013.c
View File

@ -1199,10 +1199,7 @@ static int scratch_reserve(struct target *target,
static int scratch_release(struct target *target,
scratch_mem_t *scratch)
{
if (scratch->area)
return target_free_working_area(target, scratch->area);
return ERROR_OK;
return target_free_working_area(target, scratch->area);
}
static int scratch_read64(struct target *target, scratch_mem_t *scratch,

13
src/target/target.c
View File

@ -2148,11 +2148,10 @@ static int target_restore_working_area(struct target *target, struct working_are
/* Restore the area's backup memory, if any, and return the area to the allocation pool */
static int target_free_working_area_restore(struct target *target, struct working_area *area, int restore)
{
if (!area || area->free)
return ERROR_OK;
int retval = ERROR_OK;
if (area->free)
return retval;
if (restore) {
retval = target_restore_working_area(target, area);
/* REVISIT: Perhaps the area should be freed even if restoring fails. */
@ -6401,8 +6400,7 @@ next:
out:
free(test_pattern);
if (wa)
target_free_working_area(target, wa);
target_free_working_area(target, wa);
/* Test writes */
num_bytes = test_size + 4 + 4 + 4;
@ -6486,8 +6484,7 @@ nextw:
free(test_pattern);
if (wa)
target_free_working_area(target, wa);
target_free_working_area(target, wa);
return retval;
}

7
src/target/target.h
View File

@ -726,6 +726,13 @@ int target_alloc_working_area(struct target *target,
*/
int target_alloc_working_area_try(struct target *target,
uint32_t size, struct working_area **area);
/**
* Free a working area.
* Restore target data if area backup is configured.
* @param target
* @param area Pointer to the area to be freed or NULL
* @returns ERROR_OK if successful; error code if restore failed
*/
int target_free_working_area(struct target *target, struct working_area *area);
void target_free_all_working_areas(struct target *target);
uint32_t target_get_working_area_avail(struct target *target);