From: Steve Glendinning <steve.glendinning@shawell.net>
To: netdev@vger.kernel.org
Cc: Steve Glendinning <steve.glendinning@shawell.net>
Subject: [PATCH 1/6] smsc95xx: sleep before read for lengthy operations
Date: Fri, 28 Sep 2012 11:07:07 +0100 [thread overview]
Message-ID: <1348826832-1986-2-git-send-email-steve.glendinning@shawell.net> (raw)
In-Reply-To: <1348826832-1986-1-git-send-email-steve.glendinning@shawell.net>
During init, the device reset is unexpected to complete immediately,
so sleep before testing the condition rather than after it.
Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net>
---
drivers/net/usb/smsc95xx.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
index d45e539..ed1e551 100644
--- a/drivers/net/usb/smsc95xx.c
+++ b/drivers/net/usb/smsc95xx.c
@@ -763,12 +763,12 @@ static int smsc95xx_reset(struct usbnet *dev)
timeout = 0;
do {
+ msleep(10);
ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
if (ret < 0) {
netdev_warn(dev->net, "Failed to read HW_CFG: %d\n", ret);
return ret;
}
- msleep(10);
timeout++;
} while ((read_buf & HW_CFG_LRST_) && (timeout < 100));
@@ -786,12 +786,12 @@ static int smsc95xx_reset(struct usbnet *dev)
timeout = 0;
do {
+ msleep(10);
ret = smsc95xx_read_reg(dev, PM_CTRL, &read_buf);
if (ret < 0) {
netdev_warn(dev->net, "Failed to read PM_CTRL: %d\n", ret);
return ret;
}
- msleep(10);
timeout++;
} while ((read_buf & PM_CTL_PHY_RST_) && (timeout < 100));
--
1.7.9.5
next prev parent reply other threads:[~2012-09-28 10:07 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-28 10:07 [PATCH 0/6] smsc95xx enhancements (V3) Steve Glendinning
2012-09-28 10:07 ` Steve Glendinning [this message]
2012-09-28 10:07 ` [PATCH 2/6] smsc95xx: remove unnecessary variables Steve Glendinning
2012-09-28 10:07 ` [PATCH 3/6] smsc95xx: check return code from control messages Steve Glendinning
2012-09-28 10:07 ` [PATCH 4/6] smsc95xx: fix resume when usb device is reset Steve Glendinning
2012-09-28 10:07 ` [PATCH 5/6] smsc95xx: enable power saving mode during system suspend Steve Glendinning
2012-09-28 10:07 ` [PATCH 6/6] smsc95xx: add wol magic packet support Steve Glendinning
2012-09-28 22:39 ` [PATCH 0/6] smsc95xx enhancements (V3) David Miller
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