jbd2: use NULL instead of 0 when pointer is needed

Fixes sparse warning:

fs/jbd2/journal.c:1892:9: warning: Using plain integer as NULL pointer

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
CC: linux-ext4@vger.kernel.org
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index c03d4dc..bc2ff59 100644 (file)
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -1889,7 +1889,7 @@ static struct kmem_cache *get_slab(size_t size)
        BUG_ON(i >= JBD2_MAX_SLABS);
        if (unlikely(i < 0))
                i = 0;
-       BUG_ON(jbd2_slab[i] == 0);
+       BUG_ON(jbd2_slab[i] == NULL);
        return jbd2_slab[i];
 }