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pasemi_mac: mac_to_intf() error not noticed

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mac_to_intf() can return -1 when no device or function is found, but when
mac->dma_if is unsigned. The error wasn't noticed.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
roel kluin 2009-04-23 08:53:20 +00:00 committed by David S. Miller
parent 683703a26e
commit 15b8e19131
1 changed files with 4 additions and 3 deletions
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7
drivers/net/pasemi_mac.c
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@ -1733,7 +1733,7 @@ pasemi_mac_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
struct net_device *dev;
struct pasemi_mac *mac;
int err;
int err, ret;
err = pci_enable_device(pdev);
if (err)
@ -1791,12 +1791,13 @@ pasemi_mac_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
}
memcpy(dev->dev_addr, mac->mac_addr, sizeof(mac->mac_addr));
mac->dma_if = mac_to_intf(mac);
if (mac->dma_if < 0) {
ret = mac_to_intf(mac);
if (ret < 0) {
dev_err(&mac->pdev->dev, "Can't map DMA interface\n");
err = -ENODEV;
goto out;
}
mac->dma_if = ret;
switch (pdev->device) {
case 0xa005: