Re: [PATCH 1/5] drm: Kernel Crash in drm_unlock

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Before the patch the system required rebooting (driver crash and/or kernel panic).
Now the application gets terminated.

This follows the pattern in the other parts of this code that checks that pointer.

Peter.

-----Original Message-----
From: Chris Wilson [mailto:chris@xxxxxxxxxxxxxxxxxx] 
Sent: Thursday, April 23, 2015 3:20 PM
To: Antoine, Peter
Cc: intel-gfx@xxxxxxxxxxxxxxxxxxxxx; airlied@xxxxxxxxxx; dri-devel@xxxxxxxxxxxxxxxxxxxxx; daniel.vetter@xxxxxxxx
Subject: Re:  [PATCH 1/5] drm: Kernel Crash in drm_unlock

On Thu, Apr 23, 2015 at 03:07:54PM +0100, Peter Antoine wrote:
> This patch fixes a possible kernel crash when drm_unlock 
> (DRM_IOCTL_UNLOCK) is called by a application that has not had a lock 
> created by it. This crash can be caused by any application from all users.

Crashing the application is still a crash...
-Chris

--
Chris Wilson, Intel Open Source Technology Centre
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