STM CRC driver: hal_crc_compute_partial() - validate input paramaters.

mprse · mprse · commit 68631fcaa9e7 · 2018-06-07T15:06:35.000+02:00
diff --git a/targets/TARGET_STM/mbed_crc_api.c b/targets/TARGET_STM/mbed_crc_api.c
@@ -55,7 +55,9 @@ void hal_crc_compute_partial_start(const crc_mbed_config_t* config)
 
 void hal_crc_compute_partial(const uint8_t *data, const size_t size)
 {
-  HAL_CRC_Accumulate(&current_state, (uint32_t *)data, size);
+  if (data && size) {
+      HAL_CRC_Accumulate(&current_state, (uint32_t *)data, size);
+  }
 }
 
 uint32_t hal_crc_get_result(void)

Original file line number	Diff line number	Diff line change
`@@ -55,7 +55,9 @@ void hal_crc_compute_partial_start(const crc_mbed_config_t* config)`
`55`	`55`
`56`	`56`	`void hal_crc_compute_partial(const uint8_t *data, const size_t size)`
`57`	`57`	`{`
`58`		`- HAL_CRC_Accumulate(&current_state, (uint32_t *)data, size);`
	`58`	`+ if (data && size) {`
	`59`	`+ HAL_CRC_Accumulate(&current_state, (uint32_t *)data, size);`
	`60`	`+ }`
`59`	`61`	`}`
`60`	`62`
`61`	`63`	`uint32_t hal_crc_get_result(void)`