linux-kernel - [PATCH] can: rockchip: bail out if skb cannot be allocated

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Message-Id: <20250313011506.3132295-1-chenyuan0y@gmail.com>
Date: Wed, 12 Mar 2025 20:15:05 -0500
From: Chenyuan Yang <chenyuan0y@...il.com>
To: mkl@...gutronix.de,
	kernel@...gutronix.de,
	mailhol.vincent@...adoo.fr,
	heiko@...ech.de
Cc: linux-can@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Chenyuan Yang <chenyuan0y@...il.com>
Subject: [PATCH] can: rockchip: bail out if skb cannot be allocated

Add NULL pointer check in rkcanfd_handle_error_int() to
bail out if skb cannot be allocated.

This is similar to the commit f7f0adfe64de
("can: rockchip: rkcanfd_handle_rx_fifo_overflow_int(): bail out if skb cannot be allocated").

Signed-off-by: Chenyuan Yang <chenyuan0y@...il.com>
---
 drivers/net/can/rockchip/rockchip_canfd-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/can/rockchip/rockchip_canfd-core.c b/drivers/net/can/rockchip/rockchip_canfd-core.c
index d9a937ba126c..90395cbdaab9 100644
--- a/drivers/net/can/rockchip/rockchip_canfd-core.c
+++ b/drivers/net/can/rockchip/rockchip_canfd-core.c
@@ -551,7 +551,7 @@ static int rkcanfd_handle_error_int(struct rkcanfd_priv *priv)
 
 	rkcanfd_handle_error_int_reg_ec(priv, cf, reg_ec);
 
-	if (!cf)
+	if (!cf || !skb)
 		return 0;
 
 	err = can_rx_offload_queue_timestamp(&priv->offload, skb, timestamp);
-- 
2.34.1