Lines Matching refs:NULL

76  * @return a pointer to the allocated memory or NULL if the pool is empty
98     return NULL;
101   if (element == NULL) {
111     return NULL;
134   LWIP_ASSERT("rmem != NULL", (rmem != NULL));
140   LWIP_ASSERT("hmem != NULL", (hmem != NULL));
316   if (rmem == NULL) {
317     LWIP_DEBUGF(MEM_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, ("mem_free(p == NULL) was called.\n"));
365  *         or NULL if newsize is > old size, in which case rmem is NOT touched
387     return NULL;
411     return NULL;
489  * @return pointer to allocated memory or NULL if no free memory was found.
504     return NULL;
517     return NULL;
632   return NULL;
644  * @return pointer to allocated memory / NULL pointer if there is an error