CVE-2022-50192 spi: tegra20-slink: fix UAF in tegra_slink_remove()

In the Linux kernel, the following vulnerability has been resolved: spi: tegra20-slink: fix UAF in tegraslinkremove After calling spiunregistermaster, the refcount of master will be decrease to 0, and it will be freed in spicontrollerrelease, the device data also will be freed, so it will lead a...