CVE-2025-38655 pinctrl: canaan: k230: add NULL check in DT parse

In the Linux kernel, the following vulnerability has been resolved: pinctrl: canaan: k230: add NULL check in DT parse Add a NULL check for the return value of ofgetproperty when retrieving the "pinmux" property in the group parser. This avoids a potential NULL pointer dereference if the property ...