quota: Properly return errors from dquot_writeback_dquots()

Due to a switched left and right side of an assignment,
dquot_writeback_dquots() never returned error. This could result in
errors during quota writeback to not be reported to userspace properly.
Fix it.

CC: stable@vger.kernel.org
Coverity-id: 1226884
Signed-off-by: Jan Kara <jack@suse.cz>

diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 8b663b2d95622f98b704ed693b1177d13cfa79dd..6b4527216a7fe2c60ead15d57383648f25d4d3ef 100644 (file)
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -634,7 +634,7 @@ int dquot_writeback_dquots(struct super_block *sb, int type)
                        dqstats_inc(DQST_LOOKUPS);
                        err = sb->dq_op->write_dquot(dquot);
                        if (!ret && err)
-                               err = ret;
+                               ret = err;
                        dqput(dquot);
                        spin_lock(&dq_list_lock);
                }