rtos: with pointers, use NULL instead of 0

Don't compare pointers with 0, use NULL when needed.
Don't assign pointer to 0, use NULL.

Detected through 'sparse' tool.

Change-Id: Ifa81ba961c0d490cc74880b4a46b620e6358f779
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7598
Tested-by: jenkins

diff --git a/src/rtos/chibios.c b/src/rtos/chibios.c
index 68fe8a14c99b0e92f05109bdb0e1c5728a338444..20378274ec0c03bd7a4665589cea3008be05ba44 100644 (file)
--- a/src/rtos/chibios.c
+++ b/src/rtos/chibios.c
@@ -80,12 +80,12 @@ struct chibios_params {
 static struct chibios_params chibios_params_list[] = {
        {
        "cortex_m",                                                     /* target_name */
-       0,
+       NULL,
        NULL,                                                                   /* stacking_info */
        },
        {
        "hla_target",                                                   /* target_name */
-       0,
+       NULL,
        NULL,                                                                   /* stacking_info */
        }
 };
@@ -198,7 +198,7 @@ static int chibios_update_memory_signature(struct rtos *rtos)
 errfree:
        /* Error reading the ChibiOS memory structure */
        free(signature);
-       param->signature = 0;
+       param->signature = NULL;
        return -1;
 }
 
@@ -468,7 +468,7 @@ static int chibios_get_thread_reg_list(struct rtos *rtos, int64_t thread_id,
                return -1;
 
        /* Update stacking if it can only be determined from runtime information */
-       if ((param->stacking_info == 0) &&
+       if (!param->stacking_info &&
                (chibios_update_stacking(rtos) != ERROR_OK)) {
                LOG_ERROR("Failed to determine exact stacking for the target type %s", rtos->target->type->name);
                return -1;