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authorJosef Bacik <jbacik@fusionio.com>2013-05-08 19:30:11 +0200
committerJosef Bacik <jbacik@fusionio.com>2013-05-18 03:40:12 +0200
commit69a85bd87cc81bcbd36730d4a1214c12fdb8a548 (patch)
treebe462401400f8df123ba89296c300d95fb804fc2
parentbtrfs: don't stop searching after encountering the wrong item (diff)
downloadlinux-69a85bd87cc81bcbd36730d4a1214c12fdb8a548.tar.xz
linux-69a85bd87cc81bcbd36730d4a1214c12fdb8a548.zip
Btrfs: don't null pointer deref on abort
I'm sorry, theres no excuse for this sort of work. We need to use root->leafsize since eb may be NULL. Thanks, Signed-off-by: Josef Bacik <jbacik@fusionio.com>
-rw-r--r--fs/btrfs/disk-io.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 72b17276c255..e8b29da30154 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -3808,7 +3808,7 @@ static int btrfs_destroy_marked_extents(struct btrfs_root *root,
while (start <= end) {
eb = btrfs_find_tree_block(root, start,
root->leafsize);
- start += eb->len;
+ start += root->leafsize;
if (!eb)
continue;
wait_on_extent_buffer_writeback(eb);