drm/bridge: it6505: Fix return value check for pm_runtime_get_sync

`pm_runtime_get_sync` may return 1 on success. Fix the `if` statement
here to make the code less confusing, even though additional calls to
`it6505_poweron` doesn't break anything when it's already powered.

This was reported by Dan Carpenter <dan.carpenter@oracle.com> in
https://lore.kernel.org/all/Y1fMCs6VnxbDcB41@kili/

Fixes: 10517777d302 ("drm/bridge: it6505: Adapt runtime power management framework")
Signed-off-by: Pin-yen Lin <treapking@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20221027032149.2739912-1-treapking@chromium.org

diff --git a/drivers/gpu/drm/bridge/ite-it6505.c b/drivers/gpu/drm/bridge/ite-it6505.c
index b929fc766e243dab1d1dab9a406a1f769ef80be9..21a9b8422bda5044295ec3c625c4bbcddb7368c3 100644 (file)
--- a/drivers/gpu/drm/bridge/ite-it6505.c
+++ b/drivers/gpu/drm/bridge/ite-it6505.c
@@ -2699,7 +2699,7 @@ static void it6505_extcon_work(struct work_struct *work)
                 * pm_runtime_force_resume re-enables runtime power management.
                 * Handling the error here to make sure the bridge is powered on.
                 */
-               if (ret)
+               if (ret < 0)
                        it6505_poweron(it6505);
 
                complete_all(&it6505->extcon_completion);