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, 13 insertions, 0 deletions

diff --git a/drivers/firmware/qcom/Makefile b/drivers/firmware/qcom/Makefile
new file mode 100644
index 000000000..88ce74d74
--- /dev/null
+++ b/drivers/firmware/qcom/Makefile
@@ -0,0 +1,13 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for the linux kernel.
+#
+
+obj-$(CONFIG_QCOM_SCM)		+= qcom-scm.o
+qcom-scm-objs += qcom_scm.o qcom_scm-smc.o qcom_scm-legacy.o
+CFLAGS_qcom_scm-smc.o := -I$(src)
+obj-$(CONFIG_QCOM_TZMEM)	+= qcom_tzmem.o
+obj-$(CONFIG_QCOM_QSEECOM)	+= qcom_qseecom.o
+obj-$(CONFIG_QCOM_QSEECOM_UEFISECAPP) += qcom_qseecom_uefisecapp.o
+obj-$(CONFIG_QCOM_PAS)		+= qcom_pas.o
+obj-$(CONFIG_QCOM_PAS_TEE)	+= qcom_pas_tee.o