From: Marek Vasut <ma...@denx.de> [ Upstream commit 162e48cb1d84c2c966b649b8ac5c9d4f75f6d44f ]
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 <ma...@denx.de> Reviewed-by: Robert Foss <rf...@kernel.org> Signed-off-by: Robert Foss <rf...@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20240531203333.277476-1-ma...@denx.de Signed-off-by: Sasha Levin <sas...@kernel.org> --- 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 4c6f3052156bd..3436d39c90b4c 100644 --- a/drivers/gpu/drm/bridge/tc358767.c +++ b/drivers/gpu/drm/bridge/tc358767.c @@ -1527,7 +1527,7 @@ 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
