tg3: Fix race condition in tg3_get_stats64().

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The driver's ndo_get_stats64() method is not always called under RTNL.
So it can race with driver close or ethtool reconfigurations.  Fix the
race condition by taking tp->lock spinlock in tg3_free_consistent()
when freeing the tp->hw_stats memory block.  tg3_get_stats64() is
already taking tp->lock.

Reported-by: Wang Yufen <wangyufen@huawei.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Michael Chan 2017-01-06 16:18:53 -05:00 • committed by David S. Miller

parent 6052cd1af8

commit f5992b72eb

1 changed files with 3 additions and 0 deletions

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drivers/net/ethernet/broadcom/tg3.c

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