GitHub-Mirror/linux-bl808
2
0
Fork 0
mirror of https://github.com/Fishwaldo/linux-bl808.git synced 2025-06-17 20:25:19 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

btrfs: check NULL or not

Browse source 
Should check if functions returns NULL or not.

Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Tsutomu Itoh 2011-01-05 02:32:22 +00:00 • committed by Chris Mason
parent ff175d57f0
commit 91ca338d77
3 changed files with 16 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

8
fs/btrfs/disk-io.c
View file

@ -353,6 +353,10 @@ static int csum_dirty_buffer(struct btrfs_root *root, struct page *page)
WARN_ON(len == 0);
eb = alloc_extent_buffer(tree, start, len, page, GFP_NOFS);
if (eb == NULL) {
WARN_ON(1);
goto out;
}
ret = btree_read_extent_buffer_pages(root, eb, start + PAGE_CACHE_SIZE,
btrfs_header_generation(eb));
BUG_ON(ret);
@ -427,6 +431,10 @@ static int btree_readpage_end_io_hook(struct page *page, u64 start, u64 end,
WARN_ON(len == 0);
eb = alloc_extent_buffer(tree, start, len, page, GFP_NOFS);
if (eb == NULL) {
ret = -EIO;
goto out;
}
found_start = btrfs_header_bytenr(eb);
if (found_start != start) {