drm/radeon: use time_after(a,b) to replace "a>b"

time_after() deals with timer wrapping correctly.

Signed-off-by: Yu Zhe <yuzhe@nfschina.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index e765abc..04c693c 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -1899,7 +1899,7 @@ static void radeon_dynpm_idle_work_handler(struct work_struct *work)
                 * to false since we want to wait for vbl to avoid flicker.
                 */
                if (rdev->pm.dynpm_planned_action != DYNPM_ACTION_NONE &&
-                   jiffies > rdev->pm.dynpm_action_timeout) {
+                   time_after(jiffies, rdev->pm.dynpm_action_timeout)) {
                        radeon_pm_get_dynpm_state(rdev);
                        radeon_pm_set_clocks(rdev);
                }