[PATCH 19/22] net/smsc911x: Repair broken failure paths
Lee Jones
lee.jones at linaro.org
Wed May 30 00:47:37 EDT 2012
Current failure paths attempt to free resources which we failed to request
and disable resources which we failed to enable ones. This leads to kernel
oops/panic. This patch does some simple re-ordering to prevent this from
happening.
Cc: netdev at vger.kernel.org
Signed-off-by: Lee Jones <lee.jones at linaro.org>
---
drivers/net/ethernet/smsc/smsc911x.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/smsc/smsc911x.c
index dab9c6f..1466e5d 100644
--- a/drivers/net/ethernet/smsc/smsc911x.c
+++ b/drivers/net/ethernet/smsc/smsc911x.c
@@ -2390,11 +2390,11 @@ static int __devinit smsc911x_drv_probe(struct platform_device *pdev)
retval = smsc911x_request_resources(pdev);
if (retval)
- goto out_return_resources;
+ goto out_request_resources_fail;
retval = smsc911x_enable_resources(pdev);
if (retval)
- goto out_disable_resources;
+ goto out_enable_resources_fail;
if (pdata->ioaddr == NULL) {
SMSC_WARN(pdata, probe, "Error smsc911x base address invalid");
@@ -2501,8 +2501,9 @@ out_free_irq:
free_irq(dev->irq, dev);
out_disable_resources:
(void)smsc911x_disable_resources(pdev);
-out_return_resources:
+out_enable_resources_fail:
smsc911x_free_resources(pdev);
+out_request_resources_fail:
platform_set_drvdata(pdev, NULL);
iounmap(pdata->ioaddr);
free_netdev(dev);
--
1.7.9.5
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