linux-kernel - [PATCH] can: kvaser_usb: fix return value for hif_usb_send

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Message-Id: <20240521041020.1519416-1-nichen@iscas.ac.cn>
Date: Tue, 21 May 2024 12:10:20 +0800
From: Chen Ni <nichen@...as.ac.cn>
To: mkl@...gutronix.de,
	mailhol.vincent@...adoo.fr,
	davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	extja@...ser.com,
	carsten.schmidt-achim@...nline.de
Cc: linux-can@...r.kernel.org,
	netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Chen Ni <nichen@...as.ac.cn>
Subject: [PATCH] can: kvaser_usb: fix return value for hif_usb_send_regout

As the potential failure of usb_submit_urb(), it should be better to
return the err variable to catch the error.

Signed-off-by: Chen Ni <nichen@...as.ac.cn>
---
 drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c b/drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c
index 8faf8a462c05..871cd83bcabc 100644
--- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c
+++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c
@@ -294,7 +294,7 @@ int kvaser_usb_send_cmd_async(struct kvaser_usb_net_priv *priv, void *cmd,
 	}
 	usb_free_urb(urb);
 
-	return 0;
+	return err;
 }
 
 int kvaser_usb_can_rx_over_error(struct net_device *netdev)
-- 
2.25.1