diff options
| author | Marek Vasut <marex@denx.de> | 2024-05-31 22:33:12 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-09-08 07:54:46 +0200 |
| commit | 9d567126474e68f959b2c2543c375f3bb32e948a (patch) | |
| tree | c246107e8151f6ad3c2789dd18e0a88b799d7f96 | |
| parent | d9612c66af360d9405d614abcddbaf63ec952fe8 (diff) | |
drm/bridge: tc358767: Check if fully initialized before signalling HPD event via IRQ
[ 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 <marex@denx.de>
Reviewed-by: Robert Foss <rfoss@kernel.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240531203333.277476-1-marex@denx.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/gpu/drm/bridge/tc358767.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c index d941c3a0e611..7fd4a5fe03ed 100644 --- a/drivers/gpu/drm/bridge/tc358767.c +++ b/drivers/gpu/drm/bridge/tc358767.c @@ -2034,7 +2034,7 @@ 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. * |