pinctrl: single: fix potential NULL dereference
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.19.273 by commit e671e63587c92b3fd767cf82e73129f6d5feeb33, it was introduced in version v4.11 by commit 571aec4df5b72a80f80d1e524da8fbd7ff525c98. For more details please see the references link.