From 04c9b00ba83594a29813d6b1fb8fdc93a3915174 Mon Sep 17 00:00:00 2001 From: Hangyu Hua Date: Fri, 11 Mar 2022 16:02:08 +0800 Subject: [PATCH] can: mcba_usb: mcba_usb_start_xmit(): fix double dev_kfree_skb in error path There is no need to call dev_kfree_skb() when usb_submit_urb() fails because can_put_echo_skb() deletes original skb and can_free_echo_skb() deletes the cloned skb. Fixes: 51f3baad7de9 ("can: mcba_usb: Add support for Microchip CAN BUS Analyzer") Link: https://lore.kernel.org/all/20220311080208.45047-1-hbh25y@gmail.com Signed-off-by: Hangyu Hua Signed-off-by: Marc Kleine-Budde --- drivers/net/can/usb/mcba_usb.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/net/can/usb/mcba_usb.c b/drivers/net/can/usb/mcba_usb.c index 77bddff86252..7c198eb5bc9c 100644 --- a/drivers/net/can/usb/mcba_usb.c +++ b/drivers/net/can/usb/mcba_usb.c @@ -364,7 +364,6 @@ static netdev_tx_t mcba_usb_start_xmit(struct sk_buff *skb, xmit_failed: can_free_echo_skb(priv->netdev, ctx->ndx, NULL); mcba_usb_free_ctx(ctx); - dev_kfree_skb(skb); stats->tx_dropped++; return NETDEV_TX_OK;