Samuel Holland 0eef1dcb97 drm/sun4i: Fix crash during suspend after component bind failure ...

[ Upstream commit 1342b5b23d ]

If the component driver fails to bind, or is unbound, the driver data
for the top-level platform device points to a freed drm_device. If the
system is then suspended, the driver passes this dangling pointer to
drm_mode_config_helper_suspend(), which crashes.

Fix this by only setting the driver data while the platform driver holds
a reference to the drm_device.

Fixes: 624b4b48d9 ("drm: sun4i: Add support for suspending the display driver")
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20220615054254.16352-1-samuel@sholland.org
Signed-off-by: Sasha Levin <sashal@kernel.org>

2022-06-29 09:03:22 +02:00

..

drm

drm/sun4i: Fix crash during suspend after component bind failure

2022-06-29 09:03:22 +02:00

host1x

gpu: host1x: Fix a memory leak in 'host1x_remove()'

2022-04-08 14:23:36 +02:00

ipu-v3

gpu: ipu-v3: Fix dev_dbg frequency output

2022-04-20 09:34:16 +02:00

trace

…

vga

vgaarb: don't pass a cookie to vga_client_register

2021-07-21 10:29:10 +02:00

Makefile

…