[PATCH] Missing checks in sis drm

drivers/char/drm/sis_ds.c

@@ -50,6 +50,7 @@ set_t *setInit(void)
   set_t *set;
 
   set = (set_t *)MALLOC(sizeof(set_t));
+  if (set) {
     for(i = 0; i < SET_SIZE; i++){
       set->list[i].free_next = i+1;    
       set->list[i].alloc_next = -1;
@@ -58,7 +59,7 @@ set_t *setInit(void)
     set->free = 0;
     set->alloc = -1;
     set->trace = -1;
-  
+  }  
   return set;
 }
 
@@ -172,6 +173,7 @@ static void *calloc(size_t nmemb, size_t size)
 {
   void *addr;
   addr = kmalloc(nmemb*size, GFP_KERNEL);
+  if (addr)
     memset(addr, 0, nmemb*size);
   return addr;
 }