From: Wei Yongjun <weiyj.lk@gmail.com>
Date: Mon, 8 Aug 2016 14:09:27 +0000 (+0000)
Subject: dm flakey: return -EINVAL on interval bounds error in flakey_ctr()
X-Git-Tag: firefly_0821_release~176^2~4^2~7^2~15
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=9188611f81e3046cad7703303dbcf6f26c8e4d4d;p=firefly-linux-kernel-4.4.55.git

dm flakey: return -EINVAL on interval bounds error in flakey_ctr()

commit bff7e067ee518f9ed7e1cbc63e4c9e01670d0b71 upstream.

Fix to return error code -EINVAL instead of 0, as is done elsewhere in
this function.

Fixes: e80d1c805a3b ("dm: do not override error code returned from dm_get_device()")
Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/md/dm-flakey.c b/drivers/md/dm-flakey.c
index 8e9e928dafba..78f403b45ab3 100644
--- a/drivers/md/dm-flakey.c
+++ b/drivers/md/dm-flakey.c
@@ -200,11 +200,13 @@ static int flakey_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 
 	if (!(fc->up_interval + fc->down_interval)) {
 		ti->error = "Total (up + down) interval is zero";
+		r = -EINVAL;
 		goto bad;
 	}
 
 	if (fc->up_interval + fc->down_interval < fc->up_interval) {
 		ti->error = "Interval overflow";
+		r = -EINVAL;
 		goto bad;
 	}