diff mbox series

[v2] tg3: Avoid NULL pointer dereference in netif_device_attach()

Message ID 1603265602-8887-1-git-send-email-bodefang@126.com
State Superseded
Delegated to: David Miller
Headers show
Series [v2] tg3: Avoid NULL pointer dereference in netif_device_attach() | expand

Checks

Context Check Description
jkicinski/tree_selection success Guessing tree name failed - patch did not apply

Commit Message

Defang Bo Oct. 21, 2020, 7:33 a.m. UTC 
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 <bodefang@126.com>
---
 drivers/net/ethernet/broadcom/tg3.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

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);