From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-Id: <20120527002520.911761731@linuxfoundation.org> Date: Sun, 27 May 2012 09:26:10 +0900 From: Greg KH To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, =?UTF-8?q?Guillaume=20Cl=C3=A9ment?= , Alan Cox , Dave Airlie Subject: [ 64/91] gma500: Fix Poulsbo suspend/resume crash on devices with SDVO ports In-Reply-To: <20120527010903.GA18244@kroah.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Alan Cox commit 7beff62ee39d3ccf088bb77f61a63037f714d235 upstream. Reported-by: Guillaume Clément Signed-off-by: Alan Cox Signed-off-by: Dave Airlie Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/gma500/psb_device.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) --- a/drivers/gpu/drm/gma500/psb_device.c +++ b/drivers/gpu/drm/gma500/psb_device.c @@ -197,7 +197,8 @@ static int psb_save_display_registers(st } list_for_each_entry(connector, &dev->mode_config.connector_list, head) - connector->funcs->save(connector); + if (connector->funcs->save) + connector->funcs->save(connector); mutex_unlock(&dev->mode_config.mutex); return 0; @@ -235,7 +236,8 @@ static int psb_restore_display_registers crtc->funcs->restore(crtc); list_for_each_entry(connector, &dev->mode_config.connector_list, head) - connector->funcs->restore(connector); + if (connector->funcs->restore) + connector->funcs->restore(connector); mutex_unlock(&dev->mode_config.mutex); return 0;