From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 8 May 2018 12:28:29 +0300
Subject: drm/xen-front: Fix loop timeout
Git-commit: f45140df31717bfab0974a722800d3ac0587b3f0
Patch-mainline: v4.18-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
If the loop times out then we want to exit with "to" set to zero, but in
the current code it's set to -1.
Fixes: c575b7eeb89f ("drm/xen-front: Add support for Xen PV display frontend")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180508092829.GC661@mwanda
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/xen/xen_drm_front.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/xen/xen_drm_front.c
+++ b/drivers/gpu/drm/xen/xen_drm_front.c
@@ -777,7 +777,7 @@ static int xen_drv_remove(struct xenbus_
*/
while ((xenbus_read_unsigned(front_info->xb_dev->otherend, "state",
XenbusStateUnknown) != XenbusStateInitWait) &&
- to--)
+ --to)
msleep(10);
if (!to) {