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>
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index fc96647..ba760c3 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -1855,7 +1855,7 @@
}
read_unlock(&em_tree->lock);
- if (!em || IS_ERR(em)) {
+ if (IS_ERR_OR_NULL(em)) {
kfree(failrec);
return -EIO;
}
@@ -3006,7 +3006,7 @@
di = btrfs_lookup_dir_item(trans, root, path, dir->i_ino,
name, name_len, -1);
- BUG_ON(!di || IS_ERR(di));
+ BUG_ON(IS_ERR_OR_NULL(di));
leaf = path->nodes[0];
btrfs_dir_item_key_to_cpu(leaf, di, &key);
@@ -3022,7 +3022,7 @@
BUG_ON(ret != -ENOENT);
di = btrfs_search_dir_index_item(root, path, dir->i_ino,
name, name_len);
- BUG_ON(!di || IS_ERR(di));
+ BUG_ON(IS_ERR_OR_NULL(di));
leaf = path->nodes[0];
btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);
@@ -3032,7 +3032,7 @@
di = btrfs_lookup_dir_index_item(trans, root, path, dir->i_ino,
index, name, name_len, -1);
- BUG_ON(!di || IS_ERR(di));
+ BUG_ON(IS_ERR_OR_NULL(di));
leaf = path->nodes[0];
btrfs_dir_item_key_to_cpu(leaf, di, &key);
@@ -3635,7 +3635,7 @@
while (1) {
em = btrfs_get_extent(inode, NULL, 0, cur_offset,
block_end - cur_offset, 0);
- BUG_ON(IS_ERR(em) || !em);
+ BUG_ON(IS_ERR_OR_NULL(em));
last_byte = min(extent_map_end(em), block_end);
last_byte = (last_byte + mask) & ~mask;
if (!test_bit(EXTENT_FLAG_PREALLOC, &em->flags)) {
@@ -3841,7 +3841,7 @@
if (IS_ERR(di))
ret = PTR_ERR(di);
- if (!di || IS_ERR(di))
+ if (IS_ERR_OR_NULL(di))
goto out_err;
btrfs_dir_item_key_to_cpu(path->nodes[0], di, location);
