Btrfs: fix possible memory leak in scrub_setup_recheck_block()
bbio has been malloced in btrfs_map_block() and should be
freed before leaving from the error handling cases.
spatch with a semantic match is used to found this problem.
(http://coccinelle.lip6.fr/)
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index b223620..4e9eafe 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -1029,6 +1029,7 @@
spin_lock(&sdev->stat_lock);
sdev->stat.malloc_errors++;
spin_unlock(&sdev->stat_lock);
+ kfree(bbio);
return -ENOMEM;
}
sblock->page_count++;