diff options
| author | David Herrmann <dh.herrmann@gmail.com> | 2013-11-13 11:42:26 +0100 |
|---|---|---|
| committer | Dave Airlie <airlied@gmail.com> | 2013-11-15 20:49:02 +1000 |
| commit | a3483353ca4e6dbeef2ed62ebed01af109b5b27a (patch) | |
| tree | 39d10911e950c2c8ef0fedf0d945ae549efee718 | |
| parent | 0846c728e20a0cd1e43fb75a3015f3b176a26466 (diff) | |
drm: check for !kdev in drm_unplug_minor()
We moved minor deallocation to drm_dev_free() in:
commit 8f6599da8e772fa8de54cdf98e9e03cbaf3946da
Author: David Herrmann <dh.herrmann@gmail.com>
Date: Sun Oct 20 18:55:45 2013 +0200
drm: delay minor destruction to drm_dev_free()
However, this causes a call to drm_unplug_minor(), which should just do
nothing as drm_dev_unregister() already called this.
But a separate patch caused kdev lifetime changes:
commit 5bdebb183c9702a8c57a01dff09337be3de337a6
Author: Dave Airlie <airlied@redhat.com>
Date: Fri Oct 11 14:07:25 2013 +1000
drm/sysfs: sort out minor and connector device object lifetimes.
Thus making our dev_is_registered() call useles (and even segfault if it
is NULL). Replace it with a simple !kdev test and we're fine.
Reported-by: Huax Lu <huax.lu@intel.com>
Reported-by: Daniel Vetter <daniel@ffwll.ch>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=71208
Tested-by: lu hua <huax.lu@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>
| -rw-r--r-- | drivers/gpu/drm/drm_stub.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c index c200136a5d8..f53d5246979 100644 --- a/drivers/gpu/drm/drm_stub.c +++ b/drivers/gpu/drm/drm_stub.c @@ -338,7 +338,7 @@ err_idr: */ static void drm_unplug_minor(struct drm_minor *minor) { - if (!minor || !device_is_registered(minor->kdev)) + if (!minor || !minor->kdev) return; #if defined(CONFIG_DEBUG_FS) |