btrfs: unify checking of IS_ERR and null

use IS_ERR_OR_NULL when possible, done by this coccinelle script:

@ match @
identifier id;
@@
(
- BUG_ON(IS_ERR(id) || !id);
+ BUG_ON(IS_ERR_OR_NULL(id));
|
- IS_ERR(id) || !id
+ IS_ERR_OR_NULL(id)
|
- !id || IS_ERR(id)
+ IS_ERR_OR_NULL(id)
)

Signed-off-by: David Sterba <dsterba@suse.cz>

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index f997ec0c1ba4..d5313d63f967 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -1205,7 +1205,7 @@ static noinline int replay_one_name(struct btrfs_trans_handle *trans,
         } else {
                 BUG();
         }
-        if (!dst_di || IS_ERR(dst_di)) {
+        if (IS_ERR_OR_NULL(dst_di)) {
                 /* we need a sequence number to insert, so we only
                  * do inserts for the BTRFS_DIR_INDEX_KEY types
                  */
@@ -1426,7 +1426,7 @@ again:
                                                      dir_key->offset,
                                                      name, name_len, 0);
                 }
-                if (!log_di || IS_ERR(log_di)) {
+                if (IS_ERR_OR_NULL(log_di)) {
                         btrfs_dir_item_key_to_cpu(eb, di, &location);
                         btrfs_release_path(root, path);
                         btrfs_release_path(log, log_path);