[PATCH] fixup! selftests/mm: make file helpers return errors

[Sarthak Sharma]

Convert hugetlb_nr_resv_pages(), which was missed when read_num()
changed to return an error and store the parsed value through an output
pointer.

Signed-off-by: Sarthak Sharma <sarthak.sharma@xxxxxxx>
---
 tools/testing/selftests/mm/hugepage_settings.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/mm/hugepage_settings.c
b/tools/testing/selftests/mm/hugepage_settings.c
index 9a63420d0744..6f3abd357385 100644
--- a/tools/testing/selftests/mm/hugepage_settings.c
+++ b/tools/testing/selftests/mm/hugepage_settings.c
@@ -515,10 +515,18 @@ unsigned long hugetlb_free_pages(unsigned long size)
 unsigned long hugetlb_nr_resv_pages(unsigned long size)
 {
 	char path[PATH_MAX];
+	unsigned long nr;
+	int ret;

 	hugetlb_sysfs_path(path, sizeof(path), size, "resv_hugepages");

-	return read_num(path);
+	ret = read_num(path, &nr);
+	if (ret) {
+		print_file_access_error(path, ret);
+		exit(EXIT_FAILURE);
+	}
+
+	return nr;
 }

 static bool __hugetlb_setup(unsigned long size, unsigned long nr)
-- 
2.53.0