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, 186 insertions, 0 deletions

diff --git a/lib/crypto/tests/md5-testvecs.h b/lib/crypto/tests/md5-testvecs.h
new file mode 100644
index 000000000..be6727feb
--- /dev/null
+++ b/lib/crypto/tests/md5-testvecs.h
@@ -0,0 +1,186 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* This file was generated by: ./scripts/crypto/gen-hash-testvecs.py md5 */
+
+static const struct {
+	size_t data_len;
+	u8 digest[MD5_DIGEST_SIZE];
+} hash_testvecs[] = {
+	{
+		.data_len = 0,
+		.digest = {
+			0xd4, 0x1d, 0x8c, 0xd9, 0x8f, 0x00, 0xb2, 0x04,
+			0xe9, 0x80, 0x09, 0x98, 0xec, 0xf8, 0x42, 0x7e,
+		},
+	},
+	{
+		.data_len = 1,
+		.digest = {
+			0x16, 0x7b, 0x86, 0xf2, 0x1d, 0xf3, 0x76, 0xc9,
+			0x6f, 0x10, 0xa0, 0x61, 0x5b, 0x14, 0x20, 0x0b,
+		},
+	},
+	{
+		.data_len = 2,
+		.digest = {
+			0x2d, 0x30, 0x96, 0xc7, 0x43, 0x40, 0xed, 0xb2,
+			0xfb, 0x84, 0x63, 0x9a, 0xec, 0xc7, 0x3c, 0x3c,
+		},
+	},
+	{
+		.data_len = 3,
+		.digest = {
+			0xe5, 0x0f, 0xce, 0xe0, 0xc8, 0xff, 0x4e, 0x08,
+			0x5e, 0x19, 0xe5, 0xf2, 0x08, 0x11, 0x19, 0x16,
+		},
+	},
+	{
+		.data_len = 16,
+		.digest = {
+			0xe8, 0xca, 0x29, 0x05, 0x2f, 0xd1, 0xf3, 0x99,
+			0x40, 0x71, 0xf5, 0xc2, 0xf7, 0xf8, 0x17, 0x3e,
+		},
+	},
+	{
+		.data_len = 32,
+		.digest = {
+			0xe3, 0x20, 0xc1, 0xd8, 0x21, 0x14, 0x44, 0x59,
+			0x1a, 0xf5, 0x91, 0xaf, 0x69, 0xbe, 0x93, 0x9d,
+		},
+	},
+	{
+		.data_len = 48,
+		.digest = {
+			0xfb, 0x06, 0xb0, 0xf0, 0x00, 0x10, 0x4b, 0x68,
+			0x3d, 0x75, 0xf9, 0x70, 0xde, 0xbb, 0x32, 0x16,
+		},
+	},
+	{
+		.data_len = 49,
+		.digest = {
+			0x52, 0x86, 0x48, 0x8b, 0xae, 0x91, 0x7c, 0x4e,
+			0xc2, 0x2a, 0x69, 0x07, 0x35, 0xcc, 0xb2, 0x88,
+		},
+	},
+	{
+		.data_len = 63,
+		.digest = {
+			0xfa, 0xd3, 0xf6, 0xe6, 0x7b, 0x1a, 0xc6, 0x05,
+			0x73, 0x35, 0x02, 0xab, 0xc7, 0xb3, 0x47, 0xcb,
+		},
+	},
+	{
+		.data_len = 64,
+		.digest = {
+			0xc5, 0x59, 0x29, 0xe9, 0x0a, 0x4a, 0x86, 0x43,
+			0x7c, 0xaf, 0xdf, 0x83, 0xd3, 0xb8, 0x33, 0x5f,
+		},
+	},
+	{
+		.data_len = 65,
+		.digest = {
+			0x80, 0x05, 0x75, 0x39, 0xec, 0x44, 0x8a, 0x81,
+			0xe7, 0x6e, 0x8d, 0xd1, 0xc6, 0xeb, 0xc2, 0xf0,
+		},
+	},
+	{
+		.data_len = 127,
+		.digest = {
+			0x3f, 0x02, 0xe8, 0xc6, 0xb8, 0x6a, 0x39, 0xc3,
+			0xa4, 0x1c, 0xd9, 0x8f, 0x4a, 0x71, 0x40, 0x30,
+		},
+	},
+	{
+		.data_len = 128,
+		.digest = {
+			0x89, 0x4f, 0x79, 0x3e, 0xff, 0x0c, 0x22, 0x60,
+			0xa2, 0xdc, 0x10, 0x5f, 0x23, 0x0a, 0xe7, 0xc6,
+		},
+	},
+	{
+		.data_len = 129,
+		.digest = {
+			0x06, 0x56, 0x61, 0xb8, 0x8a, 0x82, 0x77, 0x1b,
+			0x2c, 0x35, 0xb8, 0x9f, 0xd6, 0xf7, 0xbd, 0x5a,
+		},
+	},
+	{
+		.data_len = 256,
+		.digest = {
+			0x5d, 0xdf, 0x7d, 0xc8, 0x43, 0x96, 0x3b, 0xdb,
+			0xc7, 0x0e, 0x44, 0x42, 0x23, 0xf7, 0xed, 0xdf,
+		},
+	},
+	{
+		.data_len = 511,
+		.digest = {
+			0xf6, 0x5f, 0x26, 0x51, 0x8a, 0x5a, 0x46, 0x8f,
+			0x48, 0x72, 0x90, 0x74, 0x9d, 0x87, 0xbd, 0xdf,
+		},
+	},
+	{
+		.data_len = 513,
+		.digest = {
+			0xd8, 0x2c, 0xc9, 0x76, 0xfa, 0x67, 0x2e, 0xa6,
+			0xc8, 0x12, 0x4a, 0x64, 0xaa, 0x0b, 0x3d, 0xbd,
+		},
+	},
+	{
+		.data_len = 1000,
+		.digest = {
+			0xe2, 0x7e, 0xb4, 0x5f, 0xe1, 0x74, 0x51, 0xfc,
+			0xe0, 0xc8, 0xd5, 0xe6, 0x8b, 0x40, 0xd2, 0x0e,
+		},
+	},
+	{
+		.data_len = 3333,
+		.digest = {
+			0xcd, 0x7d, 0x56, 0xa9, 0x4c, 0x47, 0xea, 0xc2,
+			0x34, 0x0b, 0x84, 0x05, 0xf9, 0xad, 0xbb, 0x46,
+		},
+	},
+	{
+		.data_len = 4096,
+		.digest = {
+			0x63, 0x6e, 0x58, 0xb3, 0x94, 0x6b, 0x83, 0x5f,
+			0x1f, 0x0e, 0xd3, 0x66, 0x78, 0x71, 0x98, 0x42,
+		},
+	},
+	{
+		.data_len = 4128,
+		.digest = {
+			0x9d, 0x68, 0xfc, 0x26, 0x8b, 0x4c, 0xa8, 0xe7,
+			0x30, 0x0b, 0x19, 0x52, 0x6e, 0xa5, 0x65, 0x1c,
+		},
+	},
+	{
+		.data_len = 4160,
+		.digest = {
+			0x1c, 0xaa, 0x7d, 0xee, 0x91, 0x01, 0xe2, 0x5a,
+			0xec, 0xe9, 0xde, 0x57, 0x0a, 0xb6, 0x4c, 0x2f,
+		},
+	},
+	{
+		.data_len = 4224,
+		.digest = {
+			0x1b, 0x31, 0xe3, 0x14, 0x07, 0x16, 0x17, 0xc6,
+			0x98, 0x79, 0x88, 0x23, 0xb6, 0x3b, 0x25, 0xc4,
+		},
+	},
+	{
+		.data_len = 16384,
+		.digest = {
+			0xc6, 0x3d, 0x56, 0x90, 0xf0, 0xf6, 0xe6, 0x50,
+			0xf4, 0x76, 0x78, 0x67, 0xa3, 0xdd, 0x62, 0x7b,
+		},
+	},
+};
+
+static const u8 hash_testvec_consolidated[MD5_DIGEST_SIZE] = {
+	0x70, 0x86, 0x9e, 0x6c, 0xa4, 0xc6, 0x71, 0x43,
+	0x26, 0x02, 0x1b, 0x3f, 0xfd, 0x56, 0x9f, 0xa6,
+};
+
+static const u8 hmac_testvec_consolidated[MD5_DIGEST_SIZE] = {
+	0x10, 0x02, 0x74, 0xf6, 0x4d, 0xb3, 0x3c, 0xc7,
+	0xa1, 0xf7, 0xe6, 0xd4, 0x32, 0x64, 0xfa, 0x6d,
+};