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gma500: Fix Poulsbo suspend/resume crash on devices with SDVO ports 

Reported-by: Guillaume Clément <guillaume@baobob.org>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alan Cox 2012-05-21 15:27:44 +01:00 committed by Dave Airlie
parent bc79482914
commit 7beff62ee3
1 changed files with 4 additions and 2 deletions
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6
drivers/gpu/drm/gma500/psb_device.c
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@ -197,7 +197,8 @@ static int psb_save_display_registers(struct drm_device *dev)
}
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(struct drm_device *dev)
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;