[PATCH] drm: avoid switching to text console if there is no panic timeout

[David Rientjes]

On Mon, 17 Oct 2011, Mandeep Singh Baines wrote:

> From: Hugh Dickins <hughd at chromium.org>
> 
> Add a check for panic_timeout in the drm_fb_helper_panic() notifier: if
> we're going to reboot immediately, the user will not be able to see the
> messages anyway, and messing with the video mode may display artifacts,
> and certainly get into several layers of complexity (including mutexes and
> memory allocations) which we shall be much safer to avoid.
> 
> Signed-off-by: Hugh Dickins <hughd at google.com>
> [ Edited commit message and modified to short-circuit panic_timeout < 0
>   instead of testing panic_timeout >= 0.  -Mandeep ]
> Signed-off-by: Mandeep Singh Baines <msb at chromium.org>
> Cc: Dave Airlie <airlied at redhat.com>
> Cc: Andrew Morton <akpm at linux-foundation.org>
> Cc: dri-devel at lists.freedesktop.org

Acked-by: David Rientjes <rientjes at google.com>