release_process_vm: free vm_range_numa_policy

Change-Id: I8084cd60a12b557b635b8e350f70d4e4f95d4c52
Refs: #1101

test/issues/1101/C1101T05.c

@@ -0,0 +1,28 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <numaif.h>
+#include <sys/mman.h>
+#include <errno.h>
+
+int
+main(int argc, char **argv)
+{
+	void *p;
+	unsigned long mask;
+
+	p = mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
+		 -1, 0);
+	if (p == ((void *)-1)) {
+		perror("mmap");
+		exit(1);
+	}
+	mask = 1;
+	if (mbind(p, 4096, MPOL_PREFERRED, &mask, 2, MPOL_MF_MOVE) == -1) {
+		perror("mbind");
+		exit(1);
+	}
+	munmap(p, 4096);
+	exit(0);
+}