fix some 0->NULLs

diff --git a/src/mesa/drivers/dri/common/mm.c b/src/mesa/drivers/dri/common/mm.c
index 6572ccd9914314ea1d167de9579c3ccf05b07295..5781d9936c2c6a9d1f24b1489256515b273edf27 100644 (file)
--- a/src/mesa/drivers/dri/common/mm.c
+++ b/src/mesa/drivers/dri/common/mm.c
@@ -54,7 +54,7 @@ memHeap_t *mmInit(int ofs,
    PMemBlock blocks;
   
    if (size <= 0) {
-      return 0;
+      return NULL;
    }
    blocks = (TMemBlock *) calloc(1,sizeof(TMemBlock));
    if (blocks) {
@@ -63,7 +63,7 @@ memHeap_t *mmInit(int ofs,
       blocks->free = 1;
       return (memHeap_t *)blocks;
    } else
-      return 0;
+      return NULL;
 }