drm/mediatek: Add missing IS_ERR check for ovl_adaptor platform devicegrafted

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 <lihaojie@kylinos.cn>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20260825100845.438893-1-lihaojie@kylinos.cn/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>

1 files changed, 183 insertions, 0 deletions

diff --git a/tools/build/feature/test-all.c b/tools/build/feature/test-all.c
new file mode 100644
index 000000000..544563d62
--- /dev/null
+++ b/tools/build/feature/test-all.c
@@ -0,0 +1,183 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * test-all.c: Try to build all the main testcases at once.
+ *
+ * A well-configured system will have all the prereqs installed, so we can speed
+ * up auto-detection on such systems.
+ */
+
+/*
+ * Quirk: Python headers cannot be in arbitrary places, so keep this testcase at
+ * the top:
+ */
+#define main main_test_libpython
+# include "test-libpython.c"
+#undef main
+
+#define main main_test_hello
+# include "test-hello.c"
+#undef main
+
+#define main main_test_libelf
+# include "test-libelf.c"
+#undef main
+
+#define main main_test_gettid
+# include "test-gettid.c"
+#undef main
+
+#define main main_test_glibc
+# include "test-glibc.c"
+#undef main
+
+#define main main_test_libdw
+# include "test-libdw.c"
+#undef main
+
+#define main main_test_eventfd
+# include "test-eventfd.c"
+#undef main
+
+#define main main_test_libelf_getphdrnum
+# include "test-libelf-getphdrnum.c"
+#undef main
+
+#define main main_test_libelf_gelf_getnote
+# include "test-libelf-gelf_getnote.c"
+#undef main
+
+#define main main_test_libelf_getshdrstrndx
+# include "test-libelf-getshdrstrndx.c"
+#undef main
+
+#define main main_test_libelf_zstd
+# include "test-libelf-zstd.c"
+#undef main
+
+#define main main_test_libslang
+# include "test-libslang.c"
+#undef main
+
+#define main main_test_backtrace
+# include "test-backtrace.c"
+#undef main
+
+#define main main_test_libnuma
+# include "test-libnuma.c"
+#undef main
+
+#define main main_test_numa_num_possible_cpus
+# include "test-numa_num_possible_cpus.c"
+#undef main
+
+#define main main_test_timerfd
+# include "test-timerfd.c"
+#undef main
+
+#define main main_test_stackprotector_all
+# include "test-stackprotector-all.c"
+#undef main
+
+#define main main_test_zlib
+# include "test-zlib.c"
+#undef main
+
+#define main main_test_pthread_attr_setaffinity_np
+# include "test-pthread-attr-setaffinity-np.c"
+#undef main
+
+#define main main_test_pthread_barrier
+# include "test-pthread-barrier.c"
+#undef main
+
+#define main main_test_scandirat
+# include "test-scandirat.c"
+#undef main
+
+#define main main_test_sched_getcpu
+# include "test-sched_getcpu.c"
+#undef main
+
+# if 0
+/*
+ * Disable babeltrace2-ctf-writer check for test-all, because the requested
+ * library version is not released yet in most distributions. Will
+ * reenable later.
+ */
+
+#define main main_test_babeltrace2_ctf_writer
+# include "test-babeltrace2-ctf-writer.c"
+#undef main
+#endif
+
+#define main main_test_lzma
+# include "test-lzma.c"
+#undef main
+
+#define main main_test_bpf
+# include "test-bpf.c"
+#undef main
+
+#define main main_test_sdt
+# include "test-sdt.c"
+#undef main
+
+#define main main_test_setns
+# include "test-setns.c"
+#undef main
+
+#define main main_test_libaio
+# include "test-libaio.c"
+#undef main
+
+#define main main_test_reallocarray
+# include "test-reallocarray.c"
+#undef main
+
+#define main main_test_libzstd
+# include "test-libzstd.c"
+#undef main
+
+#define main main_test_libtraceevent
+# include "test-libtraceevent.c"
+#undef main
+
+#define main main_test_libopenssl
+# include "test-libopenssl.c"
+#undef main
+
+int main(int argc, char *argv[])
+{
+	main_test_libpython();
+	main_test_hello();
+	main_test_libelf();
+	main_test_gettid();
+	main_test_glibc();
+	main_test_libdw();
+	main_test_eventfd();
+	main_test_libelf_getphdrnum();
+	main_test_libelf_gelf_getnote();
+	main_test_libelf_getshdrstrndx();
+	main_test_libslang();
+	main_test_backtrace();
+	main_test_libnuma();
+	main_test_numa_num_possible_cpus();
+	main_test_timerfd();
+	main_test_stackprotector_all();
+	main_test_zlib();
+	main_test_pthread_attr_setaffinity_np();
+	main_test_pthread_barrier();
+	main_test_lzma();
+	main_test_bpf();
+	main_test_scandirat();
+	main_test_sched_getcpu();
+	main_test_sdt();
+	main_test_setns();
+	main_test_libaio();
+	main_test_reallocarray();
+	main_test_libzstd();
+	main_test_libtraceevent();
+	main_test_libopenssl();
+
+	return 0;
+}