From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753335AbbDBNhW (ORCPT ); Thu, 2 Apr 2015 09:37:22 -0400 Received: from mail-qc0-f169.google.com ([209.85.216.169]:33560 "EHLO mail-qc0-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752232AbbDBNhV (ORCPT ); Thu, 2 Apr 2015 09:37:21 -0400 MIME-Version: 1.0 In-Reply-To: <1427894130-14228-3-git-send-email-kraxel@redhat.com> References: <1427894130-14228-1-git-send-email-kraxel@redhat.com> <1427894130-14228-3-git-send-email-kraxel@redhat.com> Date: Thu, 2 Apr 2015 09:37:20 -0400 Message-ID: Subject: Re: [PATCH v2 2/4] drm_vblank_get: don't WARN_ON in case vblanks are not initialized From: Alex Deucher To: Gerd Hoffmann Cc: Maling list - DRI developers , virtio-dev@lists.oasis-open.org, mst@redhat.com, open list , Dave Airlie Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Apr 1, 2015 at 9:15 AM, Gerd Hoffmann wrote: > Signed-off-by: Gerd Hoffmann Reviewed-by: Alex Deucher > --- > drivers/gpu/drm/drm_irq.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c > index 10574a0..c631c1a 100644 > --- a/drivers/gpu/drm/drm_irq.c > +++ b/drivers/gpu/drm/drm_irq.c > @@ -1026,6 +1026,9 @@ int drm_vblank_get(struct drm_device *dev, int crtc) > unsigned long irqflags; > int ret = 0; > > + if (!dev->num_crtcs) > + return -EINVAL; > + > if (WARN_ON(crtc >= dev->num_crtcs)) > return -EINVAL; > > -- > 1.8.3.1 > > _______________________________________________ > dri-devel mailing list > dri-devel@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/dri-devel