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, 35 insertions, 0 deletions

diff --git a/drivers/misc/amd-sbi/Kconfig b/drivers/misc/amd-sbi/Kconfig
new file mode 100644
index 000000000..1a96b71f8
--- /dev/null
+++ b/drivers/misc/amd-sbi/Kconfig
@@ -0,0 +1,35 @@
+# SPDX-License-Identifier: GPL-2.0-only
+config AMD_SBRMI_I2C
+	tristate "AMD side band RMI support"
+	depends on I3C_OR_I2C
+	depends on ARM || ARM64 || COMPILE_TEST
+	select REGMAP_I2C
+	select REGMAP_I3C if I3C
+	help
+	  Side band RMI over I2C/I3C support for AMD out of band management.
+	  This driver is intended to run on the BMC, not the managed node.
+
+	  This driver can also be built as a module. If so, the module will
+	  be called sbrmi-i2c.
+
+config AMD_SBRMI_HWMON
+	bool "SBRMI hardware monitoring"
+	depends on AMD_SBRMI_I2C && HWMON
+	depends on !(AMD_SBRMI_I2C=y && HWMON=m)
+	help
+	  This provides support for RMI device hardware monitoring. If enabled,
+	  a hardware monitoring device will be created for each socket in
+	  the system.
+
+config AMD_SBTSI
+	tristate "AMD side band TSI support"
+	depends on I3C_OR_I2C
+	depends on ARM || ARM64 || COMPILE_TEST
+	select AUXILIARY_BUS
+	help
+	  Enables support for the AMD SB-TSI (Side Band Temperature Sensor
+	  Interface) driver, which provides access to emulated CPU temperature
+	  sensors on AMD SoCs via an I2C/I3C connected BMC device.
+
+	  This driver can also be built as a module. If so, the module will
+	  be called sbtsi.