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 --- tools/virtio/ringtest/Makefile | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 tools/virtio/ringtest/Makefile (limited to 'tools/virtio/ringtest/Makefile') diff --git a/tools/virtio/ringtest/Makefile b/tools/virtio/ringtest/Makefile new file mode 100644 index 000000000..85c98c281 --- /dev/null +++ b/tools/virtio/ringtest/Makefile @@ -0,0 +1,31 @@ +# SPDX-License-Identifier: GPL-2.0 +all: + +all: ring virtio_ring_0_9 virtio_ring_poll virtio_ring_inorder ptr_ring noring + +CFLAGS += -Wall +CFLAGS += -pthread -O2 -ggdb -flto -fwhole-program +LDFLAGS += -pthread -O2 -ggdb -flto -fwhole-program + +main.o: main.c main.h +ring.o: ring.c main.h +ptr_ring.o: ptr_ring.c main.h ../../../include/linux/ptr_ring.h +virtio_ring_0_9.o: virtio_ring_0_9.c main.h +virtio_ring_poll.o: virtio_ring_poll.c virtio_ring_0_9.c main.h +virtio_ring_inorder.o: virtio_ring_inorder.c virtio_ring_0_9.c main.h +ring: ring.o main.o +virtio_ring_0_9: virtio_ring_0_9.o main.o +virtio_ring_poll: virtio_ring_poll.o main.o +virtio_ring_inorder: virtio_ring_inorder.o main.o +ptr_ring: ptr_ring.o main.o +noring: noring.o main.o +clean: + -rm main.o + -rm ring.o ring + -rm virtio_ring_0_9.o virtio_ring_0_9 + -rm virtio_ring_poll.o virtio_ring_poll + -rm virtio_ring_inorder.o virtio_ring_inorder + -rm ptr_ring.o ptr_ring + -rm noring.o noring + +.PHONY: all clean -- cgit v1.3.1