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smsc911x: Add check for ioremap_nocache() return code

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There is no check for return code of smsc911x_drv_probe()
in smsc911x_drv_probe(). The patch adds one.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexey Khoroshilov 2017-07-12 23:58:56 +03:00 committed by David S. Miller
parent 8f44c9a413
commit 57fe14790b
1 changed files with 5 additions and 0 deletions
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5
drivers/net/ethernet/smsc/smsc911x.c
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@ -2467,6 +2467,10 @@ static int smsc911x_drv_probe(struct platform_device *pdev)
pdata = netdev_priv(dev);
dev->irq = irq;
pdata->ioaddr = ioremap_nocache(res->start, res_size);
if (!pdata->ioaddr) {
retval = -ENOMEM;
goto out_ioremap_fail;
}
pdata->dev = dev;
pdata->msg_enable = ((1 << debug) - 1);
@ -2572,6 +2576,7 @@ out_enable_resources_fail:
smsc911x_free_resources(pdev);
out_request_resources_fail:
iounmap(pdata->ioaddr);
out_ioremap_fail:
free_netdev(dev);
out_release_io_1:
release_mem_region(res->start, resource_size(res));