AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-11-24 14:30:58 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

[TG3]: Fix crash during tg3_init_one().

Browse Source 
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>
This commit is contained in:
Michael Chan 2007-04-06 17:35:37 -07:00 committed by David S. Miller
parent 161980f4c6
commit b8fa2f3a82
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/net/tg3.c
View File

@ -4834,8 +4834,10 @@ static int tg3_chip_reset(struct tg3 *tp)
* sharing or irqpoll.
*/
tp->tg3_flags |= TG3_FLAG_CHIP_RESETTING;
tp->hw_status->status = 0;
tp->hw_status->status_tag = 0;
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);