261 /* Context Information for transmission URBs */
862 static void ucan_cleanup_rx_urbs(struct ucan_priv *up, struct urb **urbs)  in ucan_cleanup_rx_urbs()  argument
867 		if (urbs[i]) {  in ucan_cleanup_rx_urbs()
868 			usb_unanchor_urb(urbs[i]);  in ucan_cleanup_rx_urbs()
871 					  urbs[i]->transfer_buffer,  in ucan_cleanup_rx_urbs()
872 					  urbs[i]->transfer_dma);  in ucan_cleanup_rx_urbs()
873 			usb_free_urb(urbs[i]);  in ucan_cleanup_rx_urbs()
877 	memset(urbs, 0, sizeof(*urbs) * UCAN_MAX_RX_URBS);  in ucan_cleanup_rx_urbs()
881 					   struct urb **urbs)  in ucan_prepare_and_anchor_rx_urbs()  argument
885 	memset(urbs, 0, sizeof(*urbs) * UCAN_MAX_RX_URBS);  in ucan_prepare_and_anchor_rx_urbs()
890 		urbs[i] = usb_alloc_urb(0, GFP_KERNEL);  in ucan_prepare_and_anchor_rx_urbs()
891 		if (!urbs[i])  in ucan_prepare_and_anchor_rx_urbs()
896 					 GFP_KERNEL, &urbs[i]->transfer_dma);  in ucan_prepare_and_anchor_rx_urbs()
899 			usb_free_urb(urbs[i]);  in ucan_prepare_and_anchor_rx_urbs()
900 			urbs[i] = NULL;  in ucan_prepare_and_anchor_rx_urbs()
904 		usb_fill_bulk_urb(urbs[i], up->udev,  in ucan_prepare_and_anchor_rx_urbs()
912 		urbs[i]->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;  in ucan_prepare_and_anchor_rx_urbs()
914 		usb_anchor_urb(urbs[i], &up->rx_urbs);  in ucan_prepare_and_anchor_rx_urbs()
919 	/* cleanup other unsubmitted urbs */  in ucan_prepare_and_anchor_rx_urbs()
920 	ucan_cleanup_rx_urbs(up, urbs);  in ucan_prepare_and_anchor_rx_urbs()
924 /* Submits rx urbs with the semantic: Either submit all, or cleanup
925  * everything. I case of errors submitted urbs are killed and all urbs in
929 static int ucan_submit_rx_urbs(struct ucan_priv *up, struct urb **urbs)  in ucan_submit_rx_urbs()  argument
933 	/* Iterate over all urbs to submit. On success remove the urb  in ucan_submit_rx_urbs()
937 		ret = usb_submit_urb(urbs[i], GFP_KERNEL);  in ucan_submit_rx_urbs()
948 		usb_free_urb(urbs[i]);  in ucan_submit_rx_urbs()
949 		urbs[i] = NULL;  in ucan_submit_rx_urbs()
954 	/* Cleanup unsubmitted urbs */  in ucan_submit_rx_urbs()
955 	ucan_cleanup_rx_urbs(up, urbs);  in ucan_submit_rx_urbs()
957 	/* Kill urbs that are already submitted */  in ucan_submit_rx_urbs()
968 	struct urb *urbs[UCAN_MAX_RX_URBS];  in ucan_open()  local
975 	/* Allocate and prepare IN URBS - allocated and anchored  in ucan_open()
976 	 * urbs are stored in urbs[] for clean  in ucan_open()
978 	ret = ucan_prepare_and_anchor_rx_urbs(up, urbs);  in ucan_open()
1013 	/* Driver is ready to receive data. Submit RX URBS */  in ucan_open()
1014 	ret = ucan_submit_rx_urbs(up, urbs);  in ucan_open()
1043 	/* clean up unsubmitted urbs */  in ucan_open()
1044 	ucan_cleanup_rx_urbs(up, urbs);  in ucan_open()
1063 		netdev_err(up->netdev, "no memory left for URBs\n");  in ucan_prepare_tx_urb()