usb: gadget: uvc: Fix comment blocks style

The UVC gadget driver historically uses the

/* Comment
 * style
 */

for multi-line block comments, which is frowned upon. Patches for the
driver are required to use the more standard

/*
 * Comment
 * style
 */

style. This result in inconsistencies. Fix it by converting all
remaining instances of the old style.

Reviewed-by: Kieran Bingham <[email protected]>
Signed-off-by: Laurent Pinchart <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: pinchartl

drivers/usb/gadget/function/f_uvc.c

@@ -141,7 +141,8 @@ static struct usb_endpoint_descriptor uvc_fs_streaming_ep = {
 	.bEndpointAddress	= USB_DIR_IN,
 	.bmAttributes		= USB_ENDPOINT_SYNC_ASYNC
 				| USB_ENDPOINT_XFER_ISOC,
-	/* The wMaxPacketSize and bInterval values will be initialized from
+	/*
+	 * The wMaxPacketSize and bInterval values will be initialized from
 	 * module parameters.
 	 */
 };
@@ -152,7 +153,8 @@ static struct usb_endpoint_descriptor uvc_hs_streaming_ep = {
 	.bEndpointAddress	= USB_DIR_IN,
 	.bmAttributes		= USB_ENDPOINT_SYNC_ASYNC
 				| USB_ENDPOINT_XFER_ISOC,
-	/* The wMaxPacketSize and bInterval values will be initialized from
+	/*
+	 * The wMaxPacketSize and bInterval values will be initialized from
 	 * module parameters.
 	 */
 };
@@ -164,15 +166,17 @@ static struct usb_endpoint_descriptor uvc_ss_streaming_ep = {
 	.bEndpointAddress	= USB_DIR_IN,
 	.bmAttributes		= USB_ENDPOINT_SYNC_ASYNC
 				| USB_ENDPOINT_XFER_ISOC,
-	/* The wMaxPacketSize and bInterval values will be initialized from
+	/*
+	 * The wMaxPacketSize and bInterval values will be initialized from
 	 * module parameters.
 	 */
 };
 
 static struct usb_ss_ep_comp_descriptor uvc_ss_streaming_comp = {
 	.bLength		= sizeof(uvc_ss_streaming_comp),
 	.bDescriptorType	= USB_DT_SS_ENDPOINT_COMP,
-	/* The bMaxBurst, bmAttributes and wBytesPerInterval values will be
+	/*
+	 * The bMaxBurst, bmAttributes and wBytesPerInterval values will be
 	 * initialized from module parameters.
 	 */
 };
@@ -234,7 +238,8 @@ uvc_function_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl)
 	if (le16_to_cpu(ctrl->wLength) > UVC_MAX_REQUEST_SIZE)
 		return -EINVAL;
 
-	/* Tell the complete callback to generate an event for the next request
+	/*
+	 * Tell the complete callback to generate an event for the next request
 	 * that will be enqueued by UVCIOC_SEND_RESPONSE.
 	 */
 	uvc->event_setup_out = !(ctrl->bRequestType & USB_DIR_IN);
@@ -500,7 +505,8 @@ uvc_copy_descriptors(struct uvc_device *uvc, enum usb_device_speed speed)
 	if (!uvc_control_desc || !uvc_streaming_cls)
 		return ERR_PTR(-ENODEV);
 
-	/* Descriptors layout
+	/*
+	 * Descriptors layout
 	 *
 	 * uvc_iad
 	 * uvc_control_intf
@@ -597,8 +603,7 @@ uvc_function_bind(struct usb_configuration *c, struct usb_function *f)
 	uvcg_info(f, "%s()\n", __func__);
 
 	opts = fi_to_f_uvc_opts(f->fi);
-	/* Sanity check the streaming endpoint module parameters.
-	 */
+	/* Sanity check the streaming endpoint module parameters. */
 	opts->streaming_interval = clamp(opts->streaming_interval, 1U, 16U);
 	opts->streaming_maxpacket = clamp(opts->streaming_maxpacket, 1U, 3072U);
 	opts->streaming_maxburst = min(opts->streaming_maxburst, 15U);
@@ -611,7 +616,8 @@ uvc_function_bind(struct usb_configuration *c, struct usb_function *f)
 			  opts->streaming_maxpacket);
 	}
 
-	/* Fill in the FS/HS/SS Video Streaming specific descriptors from the
+	/*
+	 * Fill in the FS/HS/SS Video Streaming specific descriptors from the
 	 * module parameters.
 	 *
 	 * NOTE: We assume that the user knows what they are doing and won't
@@ -895,7 +901,8 @@ static void uvc_function_unbind(struct usb_configuration *c,
 
 	uvcg_info(f, "%s()\n", __func__);
 
-	/* If we know we're connected via v4l2, then there should be a cleanup
+	/*
+	 * If we know we're connected via v4l2, then there should be a cleanup
 	 * of the device from userspace either via UVC_EVENT_DISCONNECT or
 	 * though the video device removal uevent. Allow some time for the
 	 * application to close out before things get deleted.
@@ -912,7 +919,8 @@ static void uvc_function_unbind(struct usb_configuration *c,
 	v4l2_device_unregister(&uvc->v4l2_dev);
 
 	if (uvc->func_connected) {
-		/* Wait for the release to occur to ensure there are no longer any
+		/*
+		 * Wait for the release to occur to ensure there are no longer any
 		 * pending operations that may cause panics when resources are cleaned
 		 * up.
 		 */

drivers/usb/gadget/function/uvc_queue.c

@@ -104,7 +104,8 @@ static void uvc_buffer_queue(struct vb2_buffer *vb)
 	if (likely(!(queue->flags & UVC_QUEUE_DISCONNECTED))) {
 		list_add_tail(&buf->queue, &queue->irqqueue);
 	} else {
-		/* If the device is disconnected return the buffer to userspace
+		/*
+		 * If the device is disconnected return the buffer to userspace
 		 * directly. The next QBUF call will fail with -ENODEV.
 		 */
 		buf->state = UVC_BUF_STATE_ERROR;
@@ -255,7 +256,8 @@ void uvcg_queue_cancel(struct uvc_video_queue *queue, int disconnect)
 	}
 	queue->buf_used = 0;
 
-	/* This must be protected by the irqlock spinlock to avoid race
+	/*
+	 * This must be protected by the irqlock spinlock to avoid race
 	 * conditions between uvc_queue_buffer and the disconnection event that
 	 * could result in an interruptible wait in uvc_dequeue_buffer. Do not
 	 * blindly replace this logic by checking for the UVC_DEV_DISCONNECTED

drivers/usb/gadget/function/uvc_video.c

@@ -378,7 +378,8 @@ static void uvcg_video_pump(struct work_struct *work)
 	int ret;
 
 	while (video->ep->enabled) {
-		/* Retrieve the first available USB request, protected by the
+		/*
+		 * Retrieve the first available USB request, protected by the
 		 * request lock.
 		 */
 		spin_lock_irqsave(&video->req_lock, flags);
@@ -391,7 +392,8 @@ static void uvcg_video_pump(struct work_struct *work)
 		list_del(&req->list);
 		spin_unlock_irqrestore(&video->req_lock, flags);
 
-		/* Retrieve the first available video buffer and fill the
+		/*
+		 * Retrieve the first available video buffer and fill the
 		 * request, protected by the video queue irqlock.
 		 */
 		spin_lock_irqsave(&queue->irqlock, flags);
@@ -403,9 +405,11 @@ static void uvcg_video_pump(struct work_struct *work)
 
 		video->encode(req, video, buf);
 
-		/* With usb3 we have more requests. This will decrease the
+		/*
+		 * With usb3 we have more requests. This will decrease the
 		 * interrupt load to a quarter but also catches the corner
-		 * cases, which needs to be handled */
+		 * cases, which needs to be handled.
+		 */
 		if (list_empty(&video->req_free) ||
 		    buf->state == UVC_BUF_STATE_DONE ||
 		    !(video->req_int_count %