259 /* Context Information for transmission URBs */
858 static void ucan_cleanup_rx_urbs(struct ucan_priv *up, struct urb **urbs)  in ucan_cleanup_rx_urbs()  argument
863 		if (urbs[i]) {  in ucan_cleanup_rx_urbs()
864 			usb_unanchor_urb(urbs[i]);  in ucan_cleanup_rx_urbs()
867 					  urbs[i]->transfer_buffer,  in ucan_cleanup_rx_urbs()
868 					  urbs[i]->transfer_dma);  in ucan_cleanup_rx_urbs()
869 			usb_free_urb(urbs[i]);  in ucan_cleanup_rx_urbs()
873 	memset(urbs, 0, sizeof(*urbs) * UCAN_MAX_RX_URBS);  in ucan_cleanup_rx_urbs()
877 					   struct urb **urbs)  in ucan_prepare_and_anchor_rx_urbs()  argument
881 	memset(urbs, 0, sizeof(*urbs) * UCAN_MAX_RX_URBS);  in ucan_prepare_and_anchor_rx_urbs()
886 		urbs[i] = usb_alloc_urb(0, GFP_KERNEL);  in ucan_prepare_and_anchor_rx_urbs()
887 		if (!urbs[i])  in ucan_prepare_and_anchor_rx_urbs()
892 					 GFP_KERNEL, &urbs[i]->transfer_dma);  in ucan_prepare_and_anchor_rx_urbs()
895 			usb_free_urb(urbs[i]);  in ucan_prepare_and_anchor_rx_urbs()
896 			urbs[i] = NULL;  in ucan_prepare_and_anchor_rx_urbs()
900 		usb_fill_bulk_urb(urbs[i], up->udev,  in ucan_prepare_and_anchor_rx_urbs()
908 		urbs[i]->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;  in ucan_prepare_and_anchor_rx_urbs()
910 		usb_anchor_urb(urbs[i], &up->rx_urbs);  in ucan_prepare_and_anchor_rx_urbs()
915 	/* cleanup other unsubmitted urbs */  in ucan_prepare_and_anchor_rx_urbs()
916 	ucan_cleanup_rx_urbs(up, urbs);  in ucan_prepare_and_anchor_rx_urbs()
920 /* Submits rx urbs with the semantic: Either submit all, or cleanup
921  * everything. I case of errors submitted urbs are killed and all urbs in
925 static int ucan_submit_rx_urbs(struct ucan_priv *up, struct urb **urbs)  in ucan_submit_rx_urbs()  argument
929 	/* Iterate over all urbs to submit. On success remove the urb  in ucan_submit_rx_urbs()
933 		ret = usb_submit_urb(urbs[i], GFP_KERNEL);  in ucan_submit_rx_urbs()
944 		usb_free_urb(urbs[i]);  in ucan_submit_rx_urbs()
945 		urbs[i] = NULL;  in ucan_submit_rx_urbs()
950 	/* Cleanup unsubmitted urbs */  in ucan_submit_rx_urbs()
951 	ucan_cleanup_rx_urbs(up, urbs);  in ucan_submit_rx_urbs()
953 	/* Kill urbs that are already submitted */  in ucan_submit_rx_urbs()
964 	struct urb *urbs[UCAN_MAX_RX_URBS];  in ucan_open()  local
971 	/* Allocate and prepare IN URBS - allocated and anchored  in ucan_open()
972 	 * urbs are stored in urbs[] for clean  in ucan_open()
974 	ret = ucan_prepare_and_anchor_rx_urbs(up, urbs);  in ucan_open()
1009 	/* Driver is ready to receive data. Submit RX URBS */  in ucan_open()
1010 	ret = ucan_submit_rx_urbs(up, urbs);  in ucan_open()
1039 	/* clean up unsubmitted urbs */  in ucan_open()
1040 	ucan_cleanup_rx_urbs(up, urbs);  in ucan_open()
1059 		netdev_err(up->netdev, "no memory left for URBs\n");  in ucan_prepare_tx_urb()