Am 22.11.18 um 03:36 schrieb Sharma, Deepak:
when returned fence is not valid mostly due to userspace ignored
previous error causes NULL pointer dereference
NAK, when the fence is NULL then this means it is already signaled and
no longer in the container.
In other words this is a normal case
> -Original Message-
> From: amd-gfx On Behalf Of
> Sharma, Deepak
> Sent: Thursday, November 22, 2018 10:37 AM
> To: amd-gfx@lists.freedesktop.org
> Cc: Sharma, Deepak
> Subject: [PATCH] drm/amd: add the checking to avoid NULL pointer
> dereference
>
> when returned fence is not valid
