[PATCH] drm/bridge: it6505: Fix return value check for pm_runtime_get_sync

[PATCH] drm/bridge: it6505: Fix return value check for pm_runtime_get_sync

[Pin-yen Lin]

`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>

---

 drivers/gpu/drm/bridge/ite-it6505.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/ite-it6505.c b/drivers/gpu/drm/bridge/ite-it6505.c
index b929fc766e24..21a9b8422bda 100644
--- 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);
-- 
2.38.0.135.g90850a2211-goog

Re: [PATCH] drm/bridge: it6505: Fix return value check for pm_runtime_get_sync

[AngeloGioacchino Del Regno]

Il 27/10/22 05:21, Pin-yen Lin ha scritto:
> `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>

Re: [PATCH] drm/bridge: it6505: Fix return value check for pm_runtime_get_sync

[Neil Armstrong]

Hi,

On Thu, 27 Oct 2022 11:21:49 +0800, Pin-yen Lin wrote:
> `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/
> 
> [...]

Thanks, Applied to https://anongit.freedesktop.org/git/drm/drm-misc.git (drm-misc-next)

[1/1] drm/bridge: it6505: Fix return value check for pm_runtime_get_sync
      https://cgit.freedesktop.org/drm/drm-misc/commit/?id=3e4a21a29dd924995f1135cd50e8b7e0d023729c

-- 
Neil

Re: [PATCH] drm/bridge: it6505: Fix return value check for pm_runtime_get_sync

[Neil Armstrong]

Hi,

On Thu, 27 Oct 2022 11:21:49 +0800, Pin-yen Lin wrote:
> `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/
> 
> [...]

Thanks, Applied to https://anongit.freedesktop.org/git/drm/drm-misc.git (drm-misc-next)

[1/1] drm/bridge: it6505: Fix return value check for pm_runtime_get_sync
      https://cgit.freedesktop.org/drm/drm-misc/commit/?id=3e4a21a29dd924995f1135cd50e8b7e0d023729c

-- 
Neil