Btrfs, raid56: fix memory leak when allocating pages for p/q stripes failed

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>

diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c
index 0db856c..d0ecfbd 100644 (file)
--- a/fs/btrfs/raid56.c
+++ b/fs/btrfs/raid56.c
@@ -1540,8 +1540,10 @@ static int full_stripe_write(struct btrfs_raid_bio *rbio)
        int ret;
 
        ret = alloc_rbio_parity_pages(rbio);
-       if (ret)
+       if (ret) {
+               __free_raid_bio(rbio);
                return ret;
+       }
 
        ret = lock_stripe_add(rbio);
        if (ret == 0)