diff options
| author | Jiasheng Jiang <[email protected]> | 2023-07-10 09:39:07 +0800 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2023-07-10 08:21:53 +0100 |
| commit | 87355b7c3da9bfd81935caba0ab763355147f7b0 (patch) | |
| tree | b5f683ae9391ab6ec7142bb47a1009f9f681d7a6 | |
| parent | 73c4d1b307aeb713e80ab03f90c7df9d417dc0f0 (diff) | |
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: 2cd548566384 ("net: dsa: qca8k: add support for phy read/write with mgmt Ethernet")
Signed-off-by: Jiasheng Jiang <[email protected]>
Reviewed-by: Pavan Chebbi <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
| -rw-r--r-- | drivers/net/dsa/qca/qca8k-8xxx.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/dsa/qca/qca8k-8xxx.c b/drivers/net/dsa/qca/qca8k-8xxx.c index f7d7cfb2fd86..09b80644c11b 100644 --- a/drivers/net/dsa/qca/qca8k-8xxx.c +++ b/drivers/net/dsa/qca/qca8k-8xxx.c @@ -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 */ |