In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel/uncore: Fix reference count leak in snruncoremmiomap() pcigetdevice() will increase the reference count for the returned pcidev, so snruncoregetmcdev() will return a pcidev with its reference count increased. We need to call pcidevput() to decrease the reference count. Let's add the missing pcidev_put().