[PATCH 4.9 61/83] dm flakey: return -EINVAL on interval bounds error in flakey_ctr()

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Wei Yongjun <weiyj...@gmail.com>

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...@gmail.com>
Signed-off-by: Mike Snitzer <snit...@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 drivers/md/dm-flakey.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/md/dm-flakey.c
+++ b/drivers/md/dm-flakey.c
@@ -200,11 +200,13 @@ static int flakey_ctr(struct dm_target *
 
        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;
        }