From: Chao Yu <yuchao0@huawei.com>
Date: Sat, 21 Apr 2018 09:53:52 +0000 (+0800)
Subject: f2fs: fix to detect failure of dquot_initialize
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=c22aecd75919511abea872b201751e0be1add898;p=openwrt%2Fstaging%2Fblogic.git

f2fs: fix to detect failure of dquot_initialize

dquot_initialize() can fail due to any exception inside quota subsystem,
f2fs needs to be aware of it, and return correct return value to caller.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index d2b4145cb34e..ac6452261926 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -2576,7 +2576,9 @@ static int f2fs_ioc_setproject(struct file *filp, __u32 projid)
 	}
 	f2fs_put_page(ipage, 1);
 
-	dquot_initialize(inode);
+	err = dquot_initialize(inode);
+	if (err)
+		goto out_unlock;
 
 	transfer_to[PRJQUOTA] = dqget(sb, make_kqid_projid(kprojid));
 	if (!IS_ERR(transfer_to[PRJQUOTA])) {