[PATCH] ext4: fix to propagate error from dquot_initialize()

[Chao Yu]

In ext4_ioctl_setproject(), we forgot to check error return from
dquot_initialize(), if we ignore such error, later, quota info can
be out-of-update, fix it.

Signed-off-by: Chao Yu <yuchao0@xxxxxxxxxx>
---
 fs/ext4/ioctl.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index a7074115d6f6..e6d11cb07e87 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -364,7 +364,9 @@ static int ext4_ioctl_setproject(struct file *filp, __u32 projid)
 		brelse(iloc.bh);
 	}
 
-	dquot_initialize(inode);
+	err = dquot_initialize(inode);
+	if (err)
+		goto out_unlock;
 
 	handle = ext4_journal_start(inode, EXT4_HT_QUOTA,
 		EXT4_QUOTA_INIT_BLOCKS(sb) +
-- 
2.18.0.rc1