Make sure the connector is fully initialized before signalling any
HPD events via drm_kms_helper_hotplug_event(), otherwise this may
lead to NULL pointer dereference.
Signed-off-by: Marek Vasut <marex@xxxxxxx>
---
Cc: Andrzej Hajda <andrzej.hajda@xxxxxxxxx>
Cc: Daniel Vetter <daniel@xxxxxxxx>
Cc: David Airlie <airlied@xxxxxxxxx>
Cc: Jernej Skrabec <jernej.skrabec@xxxxxxxxx>
Cc: Jonas Karlman <jonas@xxxxxxxxx>
Cc: Laurent Pinchart <Laurent.pinchart@xxxxxxxxxxxxxxxx>
Cc: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
Cc: Maxime Ripard <mripard@xxxxxxxxxx>
Cc: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
Cc: Robert Foss <rfoss@xxxxxxxxxx>
Cc: Thomas Zimmermann <tzimmermann@xxxxxxx>
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
Cc: kernel@xxxxxxxxxxxxxxxxxx
---
drivers/gpu/drm/bridge/tc358767.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c
index eab3a529e8c4f..029002938a5e8 100644
--- a/drivers/gpu/drm/bridge/tc358767.c
+++ b/drivers/gpu/drm/bridge/tc358767.c
@@ -2217,7 +2217,7 @@ static irqreturn_t tc_irq_handler(int irq, void *arg)
dev_err(tc->dev, "syserr %x\n", stat);
}
- if (tc->hpd_pin >= 0 && tc->bridge.dev) {
+ if (tc->hpd_pin >= 0 && tc->bridge.dev && tc->aux.drm_dev) {
/*
* H is triggered when the GPIO goes high.
*
--
2.43.0
