blk_post_runtime_suspend — Post runtime suspend processing
|struct request_queue * q,|
struct request_queue * q
the queue of the device
return value of the device's runtime_suspend function
Update the queue's runtime status according to the return value of the device's runtime suspend function and mark last busy for the device so that PM core will try to auto suspend the device at a later time.
This function should be called near the end of the device's runtime_suspend callback.