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, 22 insertions, 0 deletions

diff --git a/tools/perf/util/data-convert.h b/tools/perf/util/data-convert.h
new file mode 100644
index 000000000..a96240f15
--- /dev/null
+++ b/tools/perf/util/data-convert.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __DATA_CONVERT_H
+#define __DATA_CONVERT_H
+
+#include <stdbool.h>
+
+struct perf_data_convert_opts {
+	bool force;
+	bool all;
+	bool tod;
+	const char *time_str;
+};
+
+#ifdef HAVE_BABELTRACE2_CTF_WRITER_SUPPORT
+int bt_convert__perf2ctf(const char *input_name, const char *to_ctf,
+			 struct perf_data_convert_opts *opts);
+#endif /* HAVE_BABELTRACE2_CTF_WRITER_SUPPORT */
+
+int bt_convert__perf2json(const char *input_name, const char *to_ctf,
+			 struct perf_data_convert_opts *opts);
+
+#endif /* __DATA_CONVERT_H */