From: Max Vozeler <max@vozeler.com>
Date: Wed, 12 Jan 2011 13:02:03 +0000 (+0200)
Subject: staging: usbip: vhci: friendly log messages for connection errors
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=7e249c8b0737429bbf534515f81aded93504f449;p=deliverable%2Flinux.git

staging: usbip: vhci: friendly log messages for connection errors

Also changes the event on connection close to be
VDEV_EVENT_DOWN - no functional change.

Signed-off-by: Max Vozeler <max@vozeler.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/staging/usbip/vhci_rx.c b/drivers/staging/usbip/vhci_rx.c
index bdbedd256903..ac15cea75396 100644
--- a/drivers/staging/usbip/vhci_rx.c
+++ b/drivers/staging/usbip/vhci_rx.c
@@ -205,11 +205,23 @@ static void vhci_rx_pdu(struct usbip_device *ud)
 
 	memset(&pdu, 0, sizeof(pdu));
 
-
 	/* 1. receive a pdu header */
 	ret = usbip_xmit(0, ud->tcp_socket, (char *) &pdu, sizeof(pdu), 0);
+	if (ret < 0) {
+		if (ret == -ECONNRESET)
+			usbip_uinfo("connection reset by peer\n");
+		else if (ret != -ERESTARTSYS)
+			usbip_uinfo("xmit failed %d\n", ret);
+		usbip_event_add(ud, VDEV_EVENT_ERROR_TCP);
+		return;
+	}
+	if (ret == 0) {
+		usbip_uinfo("connection closed");
+		usbip_event_add(ud, VDEV_EVENT_DOWN);
+		return;
+	}
 	if (ret != sizeof(pdu)) {
-		usbip_uerr("receiving pdu failed! size is %d, should be %d\n",
+		usbip_uerr("received pdu size is %d, should be %d\n",
 					ret, (unsigned int)sizeof(pdu));
 		usbip_event_add(ud, VDEV_EVENT_ERROR_TCP);
 		return;