Fix type mismatch warnings.

Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
---
 tools/testing/selftests/mm/hugepage-vmemmap.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/mm/hugepage-vmemmap.c b/tools/testing/selftests/mm/hugepage-vmemmap.c
index 23e97e552057d..8d30ebfc9b86c 100644
--- a/tools/testing/selftests/mm/hugepage-vmemmap.c
+++ b/tools/testing/selftests/mm/hugepage-vmemmap.c
@@ -51,7 +51,8 @@ static unsigned long virt_to_pfn(void *addr)
 
 static int check_page_flags(unsigned long pfn)
 {
-	int fd, i;
+	int fd;
+	unsigned int i;
 	unsigned long pageflags;
 
 	fd = open("/proc/kpageflags", O_RDONLY);
-- 
2.39.5