[PATCH v2] tg3: Avoid NULL pointer dereference in netif_device_attach()
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From: Defang Bo <hidden>
Date: 2020-10-21 07:34:48
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Subsystem:
broadcom tg3 gigabit ethernet driver, networking drivers, the rest · Maintainers:
Pavan Chebbi, Michael Chan, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Similar to commit<1b0ff89852d7>("tg3: Avoid NULL pointer dereference in tg3_io_error_detected()")
This patch avoids NULL pointer dereference add a check for netdev being NULL on tg3_resume().
Signed-off-by: Defang Bo <redacted>
---
drivers/net/ethernet/broadcom/tg3.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index ae756dd..345c6aa 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c@@ -18099,7 +18099,7 @@ static int tg3_resume(struct device *device) rtnl_lock(); - if (!netdev || !netif_running(dev)) + if (!dev || !netif_running(dev)) goto unlock; netif_device_attach(dev);
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1.9.1