fixed block close() method prototype


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1068 c046a42c-6fe2-441c-8c8c-71466251a162
diff --git a/block-vmdk.c b/block-vmdk.c
index 7193f95..1cc4988 100644
--- a/block-vmdk.c
+++ b/block-vmdk.c
@@ -258,7 +258,7 @@
     return -1;
 }
 
-static int vmdk_close(BlockDriverState *bs)
+static void vmdk_close(BlockDriverState *bs)
 {
     BDRVVmdkState *s = bs->opaque;
     qemu_free(s->l1_table);