diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index b4a039d779b0..fb678a7254f0 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -896,12 +896,15 @@ static void get_policy_nodemask(struct mempolicy *p, nodemask_t *nodes)
 
 static int lookup_node(struct mm_struct *mm, unsigned long addr)
 {
-	struct page *p;
+	struct page *p = NULL;
 	int err;
 
 	int locked = 1;
 	err = get_user_pages_locked(addr & PAGE_MASK, 1, 0, &p, &locked);
-	if (err >= 0) {
+	if (err == 0) {
+		/* E.g. GUP interrupted by fatal signal */
+		err = -EFAULT;
+	} else if (err > 0) {
 		err = page_to_nid(p);
 		put_page(p);
 	}