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drm: add drm_dev_alloc() helper

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Instead of managing device allocation+initialization in each bus-driver,
we should do that in a central place. drm_fill_in_dev() already does most
of it, but also requires the global drm lock for partial AGP device
registration.

Split both apart so we have a clean device initialization/allocation
phase, and a registration phase.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
David Herrmann
2013-10-02 11:23:34 +02:00
committed by Dave Airlie
parent 16eb5f4379
commit 1bb72532ac
5 changed files with 80 additions and 57 deletions
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7
drivers/gpu/drm/drm_usb.c
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@@ -7,18 +7,15 @@ int drm_get_usb_dev(struct usb_interface *interface,
struct drm_driver *driver)
{
struct drm_device *dev;
struct usb_device *usbdev;
int ret;
DRM_DEBUG("\n");
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
dev = drm_dev_alloc(driver, &interface->dev);
if (!dev)
return -ENOMEM;
usbdev = interface_to_usbdev(interface);
dev->usbdev = usbdev;
dev->dev = &interface->dev;
dev->usbdev = interface_to_usbdev(interface);
mutex_lock(&drm_global_mutex);