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Commit 16fe9d74 authored by Michael Chan's avatar Michael Chan Committed by David S. Miller
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[TG3]: Fix 5704 single-port mode



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: default avatarMichael Chan <mchan@broadcom.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 6a9eba15
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+7 −2
Original line number Diff line number Diff line
@@ -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