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[TG3]: Fix 5704 single-port mode

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If the dual-port 5704 is configured as a single-port device with
only one PCI function, it would trigger a BUG() condition in
tg3_find_5704_peer(). This fixes the problem by returning its
own pdev if the peer cannot be found.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan 2005-12-13 21:09:54 -08:00 committed by David S. Miller
parent 6a9eba15f5
commit 16fe9d74f1
1 changed files with 7 additions and 2 deletions
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9
drivers/net/tg3.c
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@ -10443,8 +10443,13 @@ static struct pci_dev * __devinit tg3_find_5704_peer(struct tg3 *tp)
break;
pci_dev_put(peer);
}
if (!peer || peer == tp->pdev)
BUG();
/* 5704 can be configured in single-port mode, set peer to
* tp->pdev in that case.
*/
if (!peer) {
peer = tp->pdev;
return peer;
}
/*
* We don't need to keep the refcount elevated; there's no way