[PATCH] f2fs: return error number for quota_write

[Jaegeuk Kim <jaegeuk@xxxxxxxxxx>]

This patch returns an error number to quota_write in order for quota to handle
it correctly.

Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
---
 fs/f2fs/super.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 2feecf5e7f4c..840a0876005b 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1397,8 +1397,11 @@ static ssize_t f2fs_quota_write(struct super_block *sb, int type,
 
 		err = a_ops->write_begin(NULL, mapping, off, tocopy, 0,
 							&page, NULL);
-		if (unlikely(err))
+		if (unlikely(err)) {
+			if (len == towrite)
+				return err;
 			break;
+		}
 
 		kaddr = kmap_atomic(page);
 		memcpy(kaddr + offset, data, tocopy);
-- 
2.14.0.rc1.383.gd1ce394fe2-goog