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authorBen Skeggs <bskeggs@redhat.com>2011-07-04 03:16:17 +0000
committerDave Airlie <airlied@redhat.com>2011-07-07 17:49:00 +1000
commitd61a06862ba8c14466e1dd718cac460da0465ddd (patch)
treef291208be1768fa870fa373d2c4397f75a84d789
parentccd6895d401efad0c0e41d0e93fba4ef3085e268 (diff)
drm/kms: allow drm_mode_group with no objects
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>
-rw-r--r--drivers/gpu/drm/drm_crtc.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 21058e6ad2b..82db1850666 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -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;