diff options
| author | Sean Anderson <sean.anderson@linux.dev> | 2024-08-09 15:35:53 -0400 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> | 2024-10-30 14:17:33 +0200 |
| commit | 2e07c88914fc5289c21820b1aa94f058feb38197 (patch) | |
| tree | 010554118c5f613ed79ef5cb011541d98e6cafd9 /drivers | |
| parent | e91191efe75a94ae10fac4b384962068a8151886 (diff) | |
drm: zynqmp_kms: Unplug DRM device before removal
Prevent userspace accesses to the DRM device from causing
use-after-frees by unplugging the device before we remove it. This
causes any further userspace accesses to result in an error without
further calls into this driver's internals.
Fixes: d76271d22694 ("drm: xlnx: DRM/KMS driver for Xilinx ZynqMP DisplayPort Subsystem")
Closes: https://lore.kernel.org/dri-devel/4d8f4c9b-2efb-4774-9a37-2f257f79b2c9@linux.dev/
Signed-off-by: Sean Anderson <sean.anderson@linux.dev>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240809193600.3360015-2-sean.anderson@linux.dev
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/xlnx/zynqmp_kms.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/xlnx/zynqmp_kms.c b/drivers/gpu/drm/xlnx/zynqmp_kms.c index 2452c2f09161..0812dd6bad7c 100644 --- a/drivers/gpu/drm/xlnx/zynqmp_kms.c +++ b/drivers/gpu/drm/xlnx/zynqmp_kms.c @@ -538,7 +538,7 @@ void zynqmp_dpsub_drm_cleanup(struct zynqmp_dpsub *dpsub) { struct drm_device *drm = &dpsub->drm->dev; - drm_dev_unregister(drm); + drm_dev_unplug(drm); drm_atomic_helper_shutdown(drm); drm_encoder_cleanup(&dpsub->drm->encoder); drm_kms_helper_poll_fini(drm); |