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Date:   Wed, 21 Oct 2020 15:33:22 +0800
From:   Defang Bo <>
Cc:,,,,,, Defang Bo <>
Subject: [PATCH v2] tg3: Avoid NULL pointer dereference in netif_device_attach()

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 <>
 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)
-	if (!netdev || !netif_running(dev))
+	if (!dev || !netif_running(dev))
 		goto unlock;

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