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| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-12-18 14:35:45 +0100 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-12-18 14:36:18 +0100 |
| commit | e73ab00e9a0f1731f34d0620a9c55f5c30c4ad4e (patch) | |
| tree | c82bd3206afa2bec041408d5074628fae30a642c /block/deadline-iosched.c | |
| parent | 2ab8c5f8c0358010a19e82656fa4826a6a51d1e0 (diff) | |
drm: prevent double-(un)registration for connectors
If we're unlucky then the registration from a hotplugged connector
might race with the final registration step on driver load. And since
MST topology discover is asynchronous that's even somewhat likely.
v2: Also update the kerneldoc for @registered!
v3: Review from Chris:
- Improve kerneldoc for late_register/early_unregister callbacks.
- Use mutex_destroy.
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Reported-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161218133545.2106-1-daniel.vetter@ffwll.ch
Diffstat (limited to 'block/deadline-iosched.c')
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