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(parent: 865fb47) | patch
drm: remove minor-id during unplug
authorDavid Herrmann <dh.herrmann@gmail.com>
Sun, 20 Oct 2013 16:55:44 +0000 (18:55 +0200)
committerDave Airlie <airlied@redhat.com>
Wed, 6 Nov 2013 04:53:24 +0000 (14:53 +1000)
commitf67e946bf215f05be51f5579fcfc164c01b9c4f2
treebdca814cfcdb52c7ea3398a09cbcc7b206ae6b74tree | snapshot
parent865fb47f7f9aa1a1be2ce6a1d37af98f8d4a0d04commit | diff
drm: remove minor-id during unplug

Don't delay minor removal to drm_put_minor(). Otherwise, user-space can
still open the minor and cause the kernel to oops. Instead, remove the
minor during unplug so any new open() will fail to access this minor.

Note that open() and drm_unplug_minor() are both protected by the global
DRM mutex so we're fine.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
drivers/gpu/drm/drm_stub.c diff | blob | history
Domain: System / Uncategorized;