can: rockchip: rkcanfd_handle_rx_fifo_overflow_int(): bail out if skb cannot be allocated

commit f7f0adfe64de08803990dc4cbecd2849c04e314a upstream.

Fix NULL pointer check in rkcanfd_handle_rx_fifo_overflow_int() to
bail out if skb cannot be allocated.

Fixes: ff60bfbaf67f ("can: rockchip_canfd: add driver for Rockchip CAN-FD controller")
Cc: stable@vger.kernel.org
Signed-off-by: Robin van der Gracht <robin@protonic.nl>
Link: https://patch.msgid.link/20250208-fix-rockchip-canfd-v1-1-ec533c8a9895@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/can/rockchip/rockchip_canfd-core.c b/drivers/net/can/rockchip/rockchip_canfd-core.c
index df18c85fc0784148d55d7a0086713555fb48c008..d9a937ba126c3cfd2453b511f117272c6fd960da 100644 (file)
--- a/drivers/net/can/rockchip/rockchip_canfd-core.c
+++ b/drivers/net/can/rockchip/rockchip_canfd-core.c
@@ -622,7 +622,7 @@ rkcanfd_handle_rx_fifo_overflow_int(struct rkcanfd_priv *priv)
        netdev_dbg(priv->ndev, "RX-FIFO overflow\n");
 
        skb = rkcanfd_alloc_can_err_skb(priv, &cf, &timestamp);
-       if (skb)
+       if (!skb)
                return 0;
 
        rkcanfd_get_berr_counter_corrected(priv, &bec);