[PATCH v5 03/15] drm/bridge: synopsys: dw-dp: Add missing mutex cleanups on module removal

[Sebastian Reichel]

The driver is currently missing to fully clean up after itself. Ensure
that the mutex is cleaned up. This is only relevant when CONFIG_DEBUG_MUTEXES
is set, so not worth a Fixes tag.

Reported-by: Sashiko <sashiko-bot at kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel at collabora.com>
---
 drivers/gpu/drm/bridge/synopsys/dw-dp.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-dp.c b/drivers/gpu/drm/bridge/synopsys/dw-dp.c
index 21bd08571dcf..b28040d69fab 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-dp.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-dp.c
@@ -2031,10 +2031,13 @@ struct dw_dp *dw_dp_probe(struct platform_device *pdev, const struct dw_dp_plat_
 	dp->pixel_mode = plat_data->pixel_mode;
 	dp->plat_data.max_link_rate = plat_data->max_link_rate;
 
-	mutex_init(&dp->irq_lock);
 	INIT_WORK(&dp->hpd_work, dw_dp_hpd_work);
 	init_completion(&dp->complete);
 
+	ret = devm_mutex_init(dev, &dp->irq_lock);
+	if (ret)
+		return ERR_PTR(ret);
+
 	res = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(res))
 		return ERR_CAST(res);

-- 
2.53.0