Commit b8fa2f3a authored Apr 06, 2007 by Michael Chan Committed by David S. Miller Apr 06, 2007

[TG3]: Fix crash during tg3_init_one().



The driver will crash when the chip has been initialized by EFI before
tg3_init_one().  In this case, the driver will call tg3_chip_reset()
before allocating consistent memory.

The bug is fixed by checking for tp->hw_status before accessing it
during tg3_chip_reset().

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 161980f4

drivers/net/tg3.c

+4 −2

Original line number	Diff line number	Diff line
		@@ -4834,8 +4834,10 @@ static int tg3_chip_reset(struct tg3 *tp)
		* sharing or irqpoll.
		*/
		tp->tg3_flags \|= TG3_FLAG_CHIP_RESETTING;
		if (tp->hw_status) {
		tp->hw_status->status = 0;
		tp->hw_status->status_tag = 0;
		}
		tp->last_tag = 0;
		smp_mb();
		synchronize_irq(tp->pdev->irq);