Commit 87355b7c authored by 蒋家盛's avatar 蒋家盛 Committed by David S. Miller
Browse files

net: dsa: qca8k: Add check for skb_copy 



Add check for the return value of skb_copy in order to avoid NULL pointer
dereference.

Fixes: 2cd54856 ("net: dsa: qca8k: add support for phy read/write with mgmt Ethernet")
Signed-off-by: default avatarJiasheng Jiang <jiasheng@iscas.ac.cn>
Reviewed-by: default avatarPavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 73c4d1b3

drivers/net/dsa/qca/qca8k-8xxx.c

+3 −0
Original line number Diff line number Diff line
@@ -588,6 +588,9 @@ qca8k_phy_eth_busy_wait(struct qca8k_mgmt_eth_data *mgmt_eth_data, 
	bool ack;

	int ret;



	if (!skb)

		return -ENOMEM;



	reinit_completion(&mgmt_eth_data->rw_done);



	/* Increment seq_num and set it in the copy pkt */