flash/nor: make all working area pointers local
[openocd.git] / src / flash / nor / stm32f2x.c
index 2407977..dbecc26 100644 (file)
 #define KEY2                   0xCDEF89AB
 
 struct stm32x_flash_bank {
-       struct working_area *write_algorithm;
        int probed;
 };
 
@@ -167,7 +166,6 @@ FLASH_BANK_COMMAND_HANDLER(stm32x_flash_bank_command)
        stm32x_info = malloc(sizeof(struct stm32x_flash_bank));
        bank->driver_priv = stm32x_info;
 
-       stm32x_info->write_algorithm = NULL;
        stm32x_info->probed = 0;
 
        return ERROR_OK;
@@ -316,9 +314,9 @@ static int stm32x_protect(struct flash_bank *bank, int set, int first, int last)
 static int stm32x_write_block(struct flash_bank *bank, uint8_t *buffer,
                uint32_t offset, uint32_t count)
 {
-       struct stm32x_flash_bank *stm32x_info = bank->driver_priv;
        struct target *target = bank->target;
        uint32_t buffer_size = 16384;
+       struct working_area *write_algorithm;
        struct working_area *source;
        uint32_t address = bank->base + offset;
        struct reg_param reg_params[5];
@@ -366,12 +364,12 @@ static int stm32x_write_block(struct flash_bank *bank, uint8_t *buffer,
        };
 
        if (target_alloc_working_area(target, sizeof(stm32x_flash_write_code),
-                       &stm32x_info->write_algorithm) != ERROR_OK) {
+                       &write_algorithm) != ERROR_OK) {
                LOG_WARNING("no working area available, can't do block memory writes");
                return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
        };
 
-       retval = target_write_buffer(target, stm32x_info->write_algorithm->address,
+       retval = target_write_buffer(target, write_algorithm->address,
                        sizeof(stm32x_flash_write_code),
                        (uint8_t *)stm32x_flash_write_code);
        if (retval != ERROR_OK)
@@ -381,10 +379,9 @@ static int stm32x_write_block(struct flash_bank *bank, uint8_t *buffer,
        while (target_alloc_working_area_try(target, buffer_size, &source) != ERROR_OK) {
                buffer_size /= 2;
                if (buffer_size <= 256) {
-                       /* if we already allocated the writing code, but failed to get a
+                       /* we already allocated the writing code, but failed to get a
                         * buffer, free the algorithm */
-                       if (stm32x_info->write_algorithm)
-                               target_free_working_area(target, stm32x_info->write_algorithm);
+                       target_free_working_area(target, write_algorithm);
 
                        LOG_WARNING("no large enough working area available, can't do block memory writes");
                        return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
@@ -410,7 +407,7 @@ static int stm32x_write_block(struct flash_bank *bank, uint8_t *buffer,
                        0, NULL,
                        5, reg_params,
                        source->address, source->size,
-                       stm32x_info->write_algorithm->address, 0,
+                       write_algorithm->address, 0,
                        &armv7m_info);
 
        if (retval == ERROR_FLASH_OPERATION_FAILED) {
@@ -430,7 +427,7 @@ static int stm32x_write_block(struct flash_bank *bank, uint8_t *buffer,
        }
 
        target_free_working_area(target, source);
-       target_free_working_area(target, stm32x_info->write_algorithm);
+       target_free_working_area(target, write_algorithm);
 
        destroy_reg_param(&reg_params[0]);
        destroy_reg_param(&reg_params[1]);