ext4: sparse fixes

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 89dd876..5489703 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -1027,7 +1027,7 @@
 		}
 		if (buffer_new(&dummy)) {
 			J_ASSERT(create != 0);
-			J_ASSERT(handle != 0);
+			J_ASSERT(handle != NULL);
 
 			/*
 			 * Now that we do not always journal data, we should