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 <dste...@suse.cz>
---
fs/btrfs/acl.c | 2 +-
fs/btrfs/extent_io.c | 12 ++++++------
fs/btrfs/file.c | 2 +-
fs/btrfs/inode.c | 12 ++++++------
fs/btrfs/relocation.c | 2 +-
fs/btrfs/tree-log.c | 4 ++--
6 files changed, 17 insertions(+), 17 deletions(-)
diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c
index 5d505aa..1a21c99 100644
--- a/fs/btrfs/acl.c
+++ b/fs/btrfs/acl.c
@@ -287,7 +287,7 @@ int btrfs_acl_chmod(struct inode *inode)
return 0;
acl = btrfs_get_acl(inode, ACL_TYPE_ACCESS);
- if (IS_ERR(acl) || !acl)
+ if (IS_ERR_OR_NULL(acl))
return PTR_ERR(acl);
clone = posix_acl_clone(acl, GFP_KERNEL);
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 5fc8f37..29909b1 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2056,7 +2056,7 @@ static int __extent_read_full_page(struct extent_io_tree
*tree,
}
em = get_extent(inode, page, pg_offset, cur,
end - cur + 1, 0);
- if (IS_ERR(em) || !em) {
+ if (IS_ERR_OR_NULL(em)) {
SetPageError(page);
unlock_extent(tree, cur, end, GFP_NOFS);
break;
@@ -2341,7 +2341,7 @@ static int __extent_writepage(struct page *page, struct
writeback_control *wbc,
}
em = epd->get_extent(inode, page, pg_offset, cur,
end - cur + 1, 1);
- if (IS_ERR(em) || !em) {
+ if (IS_ERR_OR_NULL(em)) {
SetPageError(page);
break;
}
@@ -2769,7 +2769,7 @@ int extent_prepare_write(struct extent_io_tree *tree,
while (block_start <= block_end) {
em = get_extent(inode, page, pg_offset, block_start,
block_end - block_start + 1, 1);
- if (IS_ERR(em) || !em)
+ if (IS_ERR_OR_NULL(em))
goto err;
cur_end = min(block_end, extent_map_end(em) - 1);
@@ -2899,7 +2899,7 @@ int try_release_extent_mapping(struct extent_map_tree
*map,
len = end - start + 1;
write_lock(&map->lock);
em = lookup_extent_mapping(map, start, len);
- if (!em || IS_ERR(em)) {
+ if (IS_ERR_OR_NULL(em)) {
write_unlock(&map->lock);
break;
}
@@ -2942,7 +2942,7 @@ sector_t extent_bmap(struct address_space *mapping,
sector_t iblock,
em = get_extent(inode, NULL, 0, start, blksize, 0);
unlock_extent_cached(&BTRFS_I(inode)->io_tree, start,
start + blksize - 1, &cached_state, GFP_NOFS);
- if (!em || IS_ERR(em))
+ if (IS_ERR_OR_NULL(em))
return 0;
if (em->block_start > EXTENT_MAP_LAST_BYTE)
@@ -2976,7 +2976,7 @@ static struct extent_map *get_extent_skip_holes(struct
inode *inode,
break;
len = (len + sectorsize - 1) & ~(sectorsize - 1);
em = get_extent(inode, NULL, 0, offset, len, 0);
- if (!em || IS_ERR(em))
+ if (IS_ERR_OR_NULL(em))
return em;
/* if this isn't a hole return it */
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 75899a0..83abd27 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -1375,7 +1375,7 @@ static long btrfs_fallocate(struct file *file, int mode,
while (1) {
em = btrfs_get_extent(inode, NULL, 0, cur_offset,
alloc_end - cur_offset, 0);
- BUG_ON(IS_ERR(em) || !em);
+ BUG_ON(IS_ERR_OR_NULL(em));
last_byte = min(extent_map_end(em), alloc_end);
last_byte = (last_byte + mask) & ~mask;
if (em->block_start == EXTENT_MAP_HOLE ||
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index b9a98d1..f1dc7a8 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -1854,7 +1854,7 @@ static int btrfs_io_failed_hook(struct bio *failed_bio,
}
read_unlock(&em_tree->lock);
- if (!em || IS_ERR(em)) {
+ if (IS_ERR_OR_NULL(em)) {
kfree(failrec);
return -EIO;
}
@@ -3005,7 +3005,7 @@ int btrfs_unlink_subvol(struct btrfs_trans_handle *trans,
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);
@@ -3021,7 +3021,7 @@ int btrfs_unlink_subvol(struct btrfs_trans_handle *trans,
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]);
@@ -3031,7 +3031,7 @@ int btrfs_unlink_subvol(struct btrfs_trans_handle *trans,
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);
@@ -3634,7 +3634,7 @@ int btrfs_cont_expand(struct inode *inode, loff_t
oldsize, loff_t size)
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)) {
@@ -3840,7 +3840,7 @@ static int btrfs_inode_by_name(struct inode *dir, struct
dentry *dentry,
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);
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index 199a801..fed0aae 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -3220,7 +3220,7 @@ static int delete_block_group_cache(struct btrfs_fs_info
*fs_info,
key.offset = 0;
inode = btrfs_iget(fs_info->sb, &key, root, NULL);
- if (!inode || IS_ERR(inode) || is_bad_inode(inode)) {
+ if (IS_ERR_OR_NULL(inode) || is_bad_inode(inode)) {
if (inode && !IS_ERR(inode))
iput(inode);
return -ENOENT;
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index c50271a..6377ff6 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);
--
1.7.5.rc3
--
To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
