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authorDaniel Vetter <daniel.vetter@ffwll.ch>2013-11-03 20:02:50 +0100
committerDaniel Vetter <daniel.vetter@ffwll.ch>2014-04-22 11:41:11 +0200
commit22471cf638bab5d78ee1e6c465c9d7c1971ebbf5 (patch)
tree57f4bee31d85c2d7ff475fe3c800fdf2e5d9a18c
parenteaaf8f0fc32468d4dedbb5b5f9c5bfb27744be4c (diff)
downloadlinux-22471cf638bab5d78ee1e6c465c9d7c1971ebbf5.tar.bz2
drm/irq: drm_control is a legacy ioctl, so pci devices only
This just adds a correspdonding check, follow-up patches will exploit this. v2: Whitespace polish (Thierry) Reviewed-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
-rw-r--r--drivers/gpu/drm/drm_irq.c15
1 files changed, 7 insertions, 8 deletions
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index e5920e7a4392..580f9ed2dca6 100644
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -386,22 +386,21 @@ int drm_control(struct drm_device *dev, void *data,
* this used to be a separate function in drm_dma.h
*/
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
+ return 0;
+ if (drm_core_check_feature(dev, DRIVER_MODESET))
+ return 0;
+ /* UMS was only ever support on pci devices. */
+ if (WARN_ON(!dev->pdev))
+ return -EINVAL;
switch (ctl->func) {
case DRM_INST_HANDLER:
- if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
- return 0;
- if (drm_core_check_feature(dev, DRIVER_MODESET))
- return 0;
if (dev->if_version < DRM_IF_VERSION(1, 2) &&
ctl->irq != drm_dev_to_irq(dev))
return -EINVAL;
return drm_irq_install(dev);
case DRM_UNINST_HANDLER:
- if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
- return 0;
- if (drm_core_check_feature(dev, DRIVER_MODESET))
- return 0;
return drm_irq_uninstall(dev);
default:
return -EINVAL;