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usb: gadget: uvc: drop vb2_ops_wait_prepare/finish

Since commit 88785982a19d ("media: vb2: use lock if wait_prepare/finish
are NULL") it is no longer needed to set the wait_prepare/finish
vb2_ops callbacks as long as the lock field in vb2_queue is set.

Since the vb2_ops_wait_prepare/finish callbacks already rely on that field,
we can safely drop these callbacks.

This simplifies the code and this is a step towards the goal of deleting
these callbacks.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
Link: https://lore.kernel.org/r/2fb746b8-31c4-44e0-bf7b-7a0758edf52a@xs4all.nl
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

authored by

Hans Verkuil and committed by
Greg Kroah-Hartman 7abbfe6e 9bc34429

-2
-2
drivers/usb/gadget/function/uvc_queue.c
··· 122 122 .queue_setup = uvc_queue_setup, 123 123 .buf_prepare = uvc_buffer_prepare, 124 124 .buf_queue = uvc_buffer_queue, 125 - .wait_prepare = vb2_ops_wait_prepare, 126 - .wait_finish = vb2_ops_wait_finish, 127 125 }; 128 126 129 127 int uvcg_queue_init(struct uvc_video_queue *queue, struct device *dev, enum v4l2_buf_type type,