From: Jeremy Linton <jeremy.linton@arm.com>
To: netdev@vger.kernel.org
Cc: steve.glendinning@shawell.net,
sergei.shtylyov@cogentembedded.com, andrew@lunn.ch,
will.deacon@arm.com
Subject: [PATCH 1/4] net: smsc911x: Remove multiple exit points from smsc911x_open
Date: Thu, 1 Sep 2016 15:15:06 -0500 [thread overview]
Message-ID: <1472760909-19688-2-git-send-email-jeremy.linton@arm.com> (raw)
In-Reply-To: <1472760909-19688-1-git-send-email-jeremy.linton@arm.com>
Rework the error handling in smsc911x open in preparation
for the mdio startup being moved here.
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
---
drivers/net/ethernet/smsc/smsc911x.c | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/smsc/smsc911x.c
index ca31345..c9b0e05 100644
--- a/drivers/net/ethernet/smsc/smsc911x.c
+++ b/drivers/net/ethernet/smsc/smsc911x.c
@@ -1520,17 +1520,20 @@ static int smsc911x_open(struct net_device *dev)
unsigned int timeout;
unsigned int temp;
unsigned int intcfg;
+ int retval;
/* if the phy is not yet registered, retry later*/
if (!dev->phydev) {
SMSC_WARN(pdata, hw, "phy_dev is NULL");
- return -EAGAIN;
+ retval = -EAGAIN;
+ goto out;
}
/* Reset the LAN911x */
- if (smsc911x_soft_reset(pdata)) {
+ retval = smsc911x_soft_reset(pdata);
+ if (retval) {
SMSC_WARN(pdata, hw, "soft reset failed");
- return -EIO;
+ goto out;
}
smsc911x_reg_write(pdata, HW_CFG, 0x00050000);
@@ -1600,7 +1603,8 @@ static int smsc911x_open(struct net_device *dev)
if (!pdata->software_irq_signal) {
netdev_warn(dev, "ISR failed signaling test (IRQ %d)\n",
dev->irq);
- return -ENODEV;
+ retval = -ENODEV;
+ goto out;
}
SMSC_TRACE(pdata, ifup, "IRQ handler passed test using IRQ %d",
dev->irq);
@@ -1646,6 +1650,8 @@ static int smsc911x_open(struct net_device *dev)
netif_start_queue(dev);
return 0;
+out:
+ return retval;
}
/* Entry point for stopping the interface */
--
2.5.5
next prev parent reply other threads:[~2016-09-01 21:33 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-01 20:15 [PATCH v3 0/4] net: smsc911x: Move phy and interrupt config Jeremy Linton
2016-09-01 20:15 ` Jeremy Linton [this message]
2016-09-01 20:43 ` [PATCH 1/4] net: smsc911x: Remove multiple exit points from smsc911x_open Andrew Lunn
2016-09-01 20:15 ` [PATCH 2/4] net: smsc911x: Fix register_netdev, phy startup, driver unload ordering Jeremy Linton
2016-09-01 20:49 ` Andrew Lunn
2016-09-03 21:19 ` Sergei Shtylyov
2016-09-01 20:15 ` [PATCH 3/4] net: smsc911x: Move interrupt handler before open Jeremy Linton
2016-09-01 20:50 ` Andrew Lunn
2016-09-01 20:15 ` [PATCH 4/4] net: smsc911x: Move interrupt allocation to open/stop Jeremy Linton
2016-09-01 20:56 ` Andrew Lunn
2016-09-02 16:53 ` Will Deacon
2016-09-03 19:23 ` Sergei Shtylyov
2016-09-03 20:30 ` Sergei Shtylyov
2016-09-04 2:45 ` Andrew Lunn
2016-09-01 21:07 ` [PATCH v3 0/4] net: smsc911x: Move phy and interrupt config Sergei Shtylyov
2016-09-03 0:28 ` David Miller
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