Commit dc8bf1b1 authored Apr 26, 2010 by Andre Detsch Committed by David S. Miller Apr 26, 2010

tg3: Fix INTx fallback when MSI fails



tg3: Fix INTx fallback when MSI fails

MSI setup changes the value of irq_vec in struct tg3 *tp.
This attribute must be taken into account and restored before
we try to do a new request_irq for INTx fallback.

In powerpc, the original code was leading to an EINVAL return within
request_irq, because the driver was trying to use the disabled MSI
virtual irq number instead of tp->pdev->irq.

Signed-off-by: Andre Detsch <adetsch@br.ibm.com>
Acked-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 6443bb1f

drivers/net/tg3.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -8633,6 +8633,7 @@ static int tg3_test_msi(struct tg3 *tp)
		pci_disable_msi(tp->pdev);

		tp->tg3_flags2 &= ~TG3_FLG2_USING_MSI;
		tp->napi[0].irq_vec = tp->pdev->irq;

		err = tg3_request_irq(tp, 0);
		if (err)

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