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authorDaniel Vetter <daniel.vetter@ffwll.ch>2013-08-28 17:02:37 +0400
committerDaniel Vetter <daniel.vetter@ffwll.ch>2014-04-22 13:41:09 +0400
commit4984979b9b9025a1cb9a9bea089d31a3e01ccff1 (patch)
tree040c85360f270b035e2cc913a3edc6d4599594f8 /drivers/gpu
parenta798c10faf62a505d24e5f6213fbaf904a39623f (diff)
downloadlinux-4984979b9b9025a1cb9a9bea089d31a3e01ccff1.tar.xz
drm/irq: simplify irq checks in drm_wait_vblank
Checking for both an irq number _and_ whether it's enabled is redundant. Originally I've thought the drm_dev_to_irq call would break drivers which do their own irq checking, but those shouldn't have DRIVER_HAVE_IRQ set as Thierry Reding pointed out. But such drivers already need to set dev->irq_enabled for other reasons, so we might as well ditch that check, too. v2: Also drop the HAVE_IRQ check. Cc: Thierry Reding <thierry.reding@gmail.com> Reviewed-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/drm_irq.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index c2676b5908d9..d4cc47690d65 100644
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -1160,9 +1160,8 @@ int drm_wait_vblank(struct drm_device *dev, void *data,
int ret;
unsigned int flags, seq, crtc, high_crtc;
- if (drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
- if ((!drm_dev_to_irq(dev)) || (!dev->irq_enabled))
- return -EINVAL;
+ if (!dev->irq_enabled)
+ return -EINVAL;
if (vblwait->request.type & _DRM_VBLANK_SIGNAL)
return -EINVAL;