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| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-04-11 14:26:55 +0000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2013-04-12 14:21:12 +1000 |
| commit | 89ced125472b8551c65526934b7f6c733a6864fa (patch) | |
| tree | 33fb230e4392878537e19a01d724b9a7a00eb313 /mm | |
| parent | 1baee58638fc58248625255f5c5fcdb987f11b1f (diff) | |
| download | linux-3.10-89ced125472b8551c65526934b7f6c733a6864fa.tar.gz linux-3.10-89ced125472b8551c65526934b7f6c733a6864fa.tar.bz2 linux-3.10-89ced125472b8551c65526934b7f6c733a6864fa.zip | |
drm/fb-helper: Fix locking in drm_fb_helper_hotplug_event
Driver's and ->fill_modes functions are allowed to grab crtc mutexes
(for e.g. load detect). Hence we need to first only grab the general
kms mutex, and only in a second step grab all locks to do the
modesets.
This prevents a deadlock on my gm45 in the tv load detect code called
by drm_helper_probe_single_connector_modes.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions