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: https://git.stricted.de/?a=commitdiff_plain;h=ad8d61efc9b7b158095fac6a7f764d6897ef7952;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

f2fs: fix to detect failure of dquot_initialize

[ Upstream commit c22aecd75919511abea872b201751e0be1add898 ]

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>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 97537ce5127c..1b361afcbb67 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -2493,7 +2493,9 @@ 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])) {