[PATCH 4.17 074/336] f2fs: fix to detect failure of dquot_initialize

[Greg Kroah-Hartman]

4.17-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Chao Yu <yuchao0@xxxxxxxxxx>

[ 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@xxxxxxxxxx>
Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 fs/f2fs/file.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -2571,7 +2571,9 @@ static int f2fs_ioc_setproject(struct fi
 	}
 	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])) {