Fix qemu_realloc() (Kevin Wolf)

For qemu_realloc with size == 0 a result of NULL is perfectly fine

Signed-off-by: Kevin Wolf <kwolf@suse.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6615 c046a42c-6fe2-441c-8c8c-71466251a162

qemu-malloc.c

@@ -48,7 +48,10 @@ void *qemu_malloc(size_t size)
 
 void *qemu_realloc(void *ptr, size_t size)
 {
-    return oom_check(realloc(ptr, size));
+    if (size)
+        return oom_check(realloc(ptr, size));
+    else
+        return realloc(ptr, size);
 }
 
 void *qemu_mallocz(size_t size)