lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Btrfs: check return value of bio_alloc() properly

Browse Source 
bio_alloc() has the possibility of returning NULL.
So, it is necessary to check the return value.

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
2012-04-12 16:03:56 -04:00
committed by Chris Mason
parent c6664b42c4
commit e627ee7bcd
3 changed files with 10 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
fs/btrfs/compression.c
View File

@@ -405,6 +405,7 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start,
bio_put(bio);
bio = compressed_bio_alloc(bdev, first_byte, GFP_NOFS);
BUG_ON(!bio);
bio->bi_private = cb;
bio->bi_end_io = end_compressed_bio_write;
bio_add_page(bio, page, PAGE_CACHE_SIZE, 0);
@@ -687,6 +688,7 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
comp_bio = compressed_bio_alloc(bdev, cur_disk_byte,
GFP_NOFS);
BUG_ON(!comp_bio);
comp_bio->bi_private = cb;
comp_bio->bi_end_io = end_compressed_bio_read;