glide up

vendor/golang.org/x/net/lif/syscall.go

@@ -19,8 +19,13 @@ var procIoctl uintptr
 
 func sysvicall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (uintptr, uintptr, syscall.Errno)
 
+// TODO: replace with runtime.KeepAlive when available
+//go:noescape
+func keepAlive(p unsafe.Pointer)
+
 func ioctl(s, ioc uintptr, arg unsafe.Pointer) error {
 	_, _, errno := sysvicall6(uintptr(unsafe.Pointer(&procIoctl)), 3, s, ioc, uintptr(arg), 0, 0, 0)
+	keepAlive(arg)
 	if errno != 0 {
 		return error(errno)
 	}