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Message-ID: <CADnq5_ME1CYWTohaZrRWK60S8pnou5W1qKtJHZZmZbY51P0ozg@mail.gmail.com> Date: Thu, 2 Apr 2015 09:37:20 -0400 From: Alex Deucher <alexdeucher@...il.com> To: Gerd Hoffmann <kraxel@...hat.com> Cc: Maling list - DRI developers <dri-devel@...ts.freedesktop.org>, virtio-dev@...ts.oasis-open.org, mst@...hat.com, open list <linux-kernel@...r.kernel.org>, Dave Airlie <airlied@...hat.com> Subject: Re: [PATCH v2 2/4] drm_vblank_get: don't WARN_ON in case vblanks are not initialized On Wed, Apr 1, 2015 at 9:15 AM, Gerd Hoffmann <kraxel@...hat.com> wrote: > Signed-off-by: Gerd Hoffmann <kraxel@...hat.com> Reviewed-by: Alex Deucher <alexander.deucher@....com> > --- > 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@...ts.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/dri-devel -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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