From: hayeswang <hayeswang@realtek.com>
Date: Fri, 16 Aug 2013 08:09:38 +0000 (+0800)
Subject: r8152: add comments
X-Git-Tag: upstream/snapshot3+hdmi~4422^2~274
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7559fb2fc547b3507ba462c6558e291fb21b9cee;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

r8152: add comments

Add comments.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 825edfe..f3fce41 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -790,6 +790,9 @@ static void read_bulk_callback(struct urb *urb)
 		return;
 
 	netdev = tp->netdev;
+
+	/* When link down, the driver would cancel all bulks. */
+	/* This avoid the re-submitting bulk */
 	if (!netif_carrier_ok(netdev))
 		return;
 
@@ -1296,6 +1299,8 @@ static void bottom_half(unsigned long data)
 	if (!test_bit(WORK_ENABLE, &tp->flags))
 		return;
 
+	/* When link down, the driver would cancel all bulks. */
+	/* This avoid the re-submitting bulk */
 	if (!netif_carrier_ok(tp->netdev))
 		return;