[PATCH] bdi: Fix error return code in alloc_wbufs()

[Wang ShaoBo]

Fix to return PTR_ERR() error code from the error handling case instead
fo 0 in function alloc_wbufs(), as done elsewhere in this function.

Fixes: 6a98bc4614de ("ubifs: Add authentication nodes to journal")
Signed-off-by: Wang ShaoBo <bobo.shaobow...@huawei.com>
---
 fs/ubifs/super.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index cb3acfb7dd1f..dacbb999ae34 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -838,8 +838,10 @@ static int alloc_wbufs(struct ubifs_info *c)
                c->jheads[i].wbuf.jhead = i;
                c->jheads[i].grouped = 1;
                c->jheads[i].log_hash = ubifs_hash_get_desc(c);
-               if (IS_ERR(c->jheads[i].log_hash))
+               if (IS_ERR(c->jheads[i].log_hash)) {
+                       err = PTR_ERR(c->jheads[i].log_hash);
                        goto out;
+               }
        }
 
        /*
-- 
2.25.1