diff options
| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2019-02-28 15:49:08 +0100 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2019-04-24 11:30:32 +0200 |
| commit | 204f640da6914844b3270b41b29c84f6e3b74083 (patch) | |
| tree | e30019685abf08d48b9a52692c16a2cea8a60cb6 /drivers/gpu/drm/drm_crtc.c | |
| parent | drm/lease: Check for lessor outside of locks (diff) | |
| download | linux-204f640da6914844b3270b41b29c84f6e3b74083.tar.xz linux-204f640da6914844b3270b41b29c84f6e3b74083.zip | |
drm/lease: Make sure implicit planes are leased
If userspace doesn't enable universal planes, then we automatically
add the primary and cursor planes. But for universal userspace there's
no such check (and maybe we only want to give the lessee one plane,
maybe not even the primary one), hence we need to check for the
implied plane.
v2: don't forget setcrtc ioctl.
v3: Still allow disabling of the crtc in SETCRTC.
Cc: stable@vger.kernel.org
Cc: Keith Packard <keithp@keithp.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190228144910.26488-6-daniel.vetter@ffwll.ch
Diffstat (limited to 'drivers/gpu/drm/drm_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/drm_crtc.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 7dabbaf033a1..790ba5941954 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -559,6 +559,10 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data, plane = crtc->primary; + /* allow disabling with the primary plane leased */ + if (crtc_req->mode_valid && !drm_lease_held(file_priv, plane->base.id)) + return -EACCES; + mutex_lock(&crtc->dev->mode_config.mutex); DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE, ret); |