btrfs: use PTR_ERR_OR_ZERO

replace IS_ERR/PTR_ERR

Cc: Chris Mason <clm@fb.com>
Cc: Josef Bacik <jbacik@fb.com>
Cc: linux-btrfs@vger.kernel.org
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Chris Mason <clm@fb.com>

diff --git a/fs/btrfs/hash.c b/fs/btrfs/hash.c
index 85889aa..64f15bb 100644 (file)
--- a/fs/btrfs/hash.c
+++ b/fs/btrfs/hash.c
@@ -20,10 +20,8 @@ static struct crypto_shash *tfm;
 int __init btrfs_hash_init(void)
 {
        tfm = crypto_alloc_shash("crc32c", 0, 0);
-       if (IS_ERR(tfm))
-               return PTR_ERR(tfm);
 
-       return 0;
+       return PTR_ERR_OR_ZERO(tfm);
 }
 
 void btrfs_hash_exit(void)