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Subjectmutex_unlock is missed in function (drm_crtc_init) in file (linux-3.13/drivers/gpu/drm/drm_crtc.c)
From
Bug Report Filed: https://bugzilla.kernel.org/show_bug.cgi?id=70081
Linux Version [3.13]
Configuration: Default configuration for x86

In function (drm_crtc_init) in file (linux-3.13/drivers/gpu/drm/drm_crtc.c):

The structure (crtc->mutex) gets successfully locked at line (636) by
(drm_modeset_lock_all(dev)), but it is not unlocked before line (637)
where the structure is reinitialized. After line (637) the
re-initialized structure gets locked at (638) and unlocked at line
(650) by (drm_modeset_unlock_all(dev)).

A possible solution is to call (drm_modeset_unlock_all(dev)) before
the re-initialization line (637).


Thanks,
Ahmed


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