diff options
| author | Dmitriy Monakhov | 2007-05-08 09:24:34 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2007-05-08 20:14:59 +0200 |
| commit | 82f703bb8cb2732b4437a9f555a1be564e9e71c2 (patch) | |
| tree | 14b96636cc447ff00a5c3da0aa8d114f982b6cea /fs/freevxfs/vxfs_inode.c | |
| parent | is_power_of_2 in fs/block_dev.c (diff) | |
| download | kernel-qcow2-linux-82f703bb8cb2732b4437a9f555a1be564e9e71c2.tar.gz kernel-qcow2-linux-82f703bb8cb2732b4437a9f555a1be564e9e71c2.tar.xz kernel-qcow2-linux-82f703bb8cb2732b4437a9f555a1be564e9e71c2.zip | |
freevxfs: possible null pointer dereference fix
sb_read may return NULL, so let's explicitly check it.
Signed-off-by: Dmitriy Monakhov <dmonakhov@openvz.org>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/freevxfs/vxfs_inode.c')
| -rw-r--r-- | fs/freevxfs/vxfs_inode.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/freevxfs/vxfs_inode.c b/fs/freevxfs/vxfs_inode.c index 098a915fd9a1..d1f7c5b5b3c3 100644 --- a/fs/freevxfs/vxfs_inode.c +++ b/fs/freevxfs/vxfs_inode.c @@ -99,7 +99,7 @@ vxfs_blkiget(struct super_block *sbp, u_long extent, ino_t ino) offset = ((ino % (sbp->s_blocksize / VXFS_ISIZE)) * VXFS_ISIZE); bp = sb_bread(sbp, block); - if (buffer_mapped(bp)) { + if (bp && buffer_mapped(bp)) { struct vxfs_inode_info *vip; struct vxfs_dinode *dip; |