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isdn: hisax: set error code on failure 

In function hfc4s8s_probe(), the value of return variable err should be
negative on failures. However, when the call to request_region() returns
NULL, the value of err is 0. This patch fixes the bug, assigning
"-EBUSY" to err on the path that request_region() fails.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188931

Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pan Bian 2016-12-04 18:43:31 +08:00 committed by David S. Miller
parent 005f7e68e7
commit 9a53682b34
1 changed files with 1 additions and 0 deletions
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1
drivers/isdn/hisax/hfc4s8s_l1.c
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@ -1499,6 +1499,7 @@ hfc4s8s_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
printk(KERN_INFO
"HFC-4S/8S: failed to request address space at 0x%04x\n",
hw->iobase);
err = -EBUSY;
goto out;
}