[PATCH 6.13 152/274] can: rockchip: rkcanfd_handle_rx_fifo_overflow_int(): bail out if skb cannot be allocated

6.13-stable review patch. If anyone has any objections, please let me know.

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From: Robin van der Gracht robin@protonic.nl

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@pengu... Signed-off-by: Marc Kleine-Budde mkl@pengutronix.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/can/rockchip/rockchip_canfd-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

--- 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(stru 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);