[PATCH 3/4] quota: make dquot_quota_sync return errors from ->sync_fs

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From: Darrick J. Wong <djwong@xxxxxxxxxx>

Strangely, dquot_quota_sync ignores the return code from the ->sync_fs
call, which means that quotacalls like Q_SYNC never see the error.  This
doesn't seem right, so fix that.

Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
---
 fs/quota/dquot.c |   11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)


diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 22d904bde6ab..a74aef99bd3d 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -690,9 +690,14 @@ int dquot_quota_sync(struct super_block *sb, int type)
 	/* This is not very clever (and fast) but currently I don't know about
 	 * any other simple way of getting quota data to disk and we must get
 	 * them there for userspace to be visible... */
-	if (sb->s_op->sync_fs)
-		sb->s_op->sync_fs(sb, 1);
-	sync_blockdev(sb->s_bdev);
+	if (sb->s_op->sync_fs) {
+		ret = sb->s_op->sync_fs(sb, 1);
+		if (ret)
+			return ret;
+	}
+	ret = sync_blockdev(sb->s_bdev);
+	if (ret)
+		return ret;
 
 	/*
 	 * Now when everything is written we can discard the pagecache so




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