From bce7698e2e6565bb765bd0522337f29f5f312624 Mon Sep 17 00:00:00 2001 From: Haojie Li Date: Tue, 25 Aug 2026 18:08:45 +0800 Subject: drm/mediatek: Add missing IS_ERR check for ovl_adaptor platform device platform_device_register_data() can fail and return an ERR_PTR, but the return value is used without checking, leading to an invalid pointer being stored in ddp_comp[].dev and passed to component_match_add() and mtk_ddp_comp_init(), which could result in a kernel crash. Add an IS_ERR() check to jump to the error handling path on failure. Fixes: 0d9eee9118b7 ("drm/mediatek: Add drm ovl_adaptor sub driver for MT8195") Cc: stable@vger.kernel.org Signed-off-by: Haojie Li Reviewed-by: CK Hu Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20260825100845.438893-1-lihaojie@kylinos.cn/ Signed-off-by: Chun-Kuang Hu --- include/net/lag.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 include/net/lag.h (limited to 'include/net/lag.h') diff --git a/include/net/lag.h b/include/net/lag.h new file mode 100644 index 000000000..95b880e6f --- /dev/null +++ b/include/net/lag.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _LINUX_IF_LAG_H +#define _LINUX_IF_LAG_H + +#include +#include +#include + +static inline bool net_lag_port_dev_txable(const struct net_device *port_dev) +{ + if (netif_is_team_port(port_dev)) + return team_port_dev_txable(port_dev); + else + return bond_is_active_slave_dev(port_dev); +} + +#endif /* _LINUX_IF_LAG_H */ -- cgit v1.3.1