luck/tmp_suning_uos_patched
1
0
Fork 1
Code Issues Pull Requests Packages Projects Releases Wiki Activity

drm/kms: allow drm_mode_group with no objects

Browse Source 
Sometimes we could be controlling a device (such as an NVIDIA Tesla) that
has no crtcs/encoders/connectors.

One could argue that the driver should unset DRIVER_MODESET in this case,
but that changes a whole heap of the DRM's other behaviours, and it's much
easier to just be a modesetting driver without any outputs.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Ben Skeggs 2011-07-04 03:16:17 +00:00 committed by Dave Airlie
parent ccd6895d40
commit d61a06862b
1 changed files with 0 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/drm/drm_crtc.c
View File

@ -886,9 +886,6 @@ int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
total_objects += dev->mode_config.num_connector;
total_objects += dev->mode_config.num_encoder;
if (total_objects == 0)
return -EINVAL;
group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
if (!group->id_list)
return -ENOMEM;