Take reference of a drm device
void drm_dev_ref(struct drm_device * dev);
dev
device to take reference of or NULL
This increases the ref-count of dev by one. You *must* already own a reference when calling this. Use drm_dev_unref to drop this reference again.
This function never fails. However, this function does not provide *any* guarantee whether the device is alive or running. It only provides a reference to the object and the memory associated with it.
Jesse Barnes <[email protected]>
Intel Corporation,
Initial version
Laurent Pinchart <[email protected]>
Ideas on board SPRL,
Driver internals
Daniel Vetter <[email protected]>
Intel Corporation,
Contributions all over the place