[PATCH] selftests/mm/cow: Modify the incorrect checking parameters

[Hao Ge <hao.ge@linux.dev>]

From: Hao Ge <gehao@kylinos.cn>

In the run_with_memfd_hugetlb function, some error handle
have passed incorrect parameters.
It should be "smem", but it was mistakenly written as "mem".

Let's fix it.

Fixes: baa489fabd01 ("selftests/vm: rename selftests/vm to selftests/mm")
Signed-off-by: Hao Ge <gehao@kylinos.cn>
---
 tools/testing/selftests/mm/cow.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/mm/cow.c b/tools/testing/selftests/mm/cow.c
index 32c6ccc2a6be..7a89680d1566 100644
--- a/tools/testing/selftests/mm/cow.c
+++ b/tools/testing/selftests/mm/cow.c
@@ -1684,7 +1684,7 @@ static void run_with_memfd_hugetlb(non_anon_test_fn fn, const char *desc,
 		goto close;
 	}
 	smem = mmap(NULL, hugetlbsize, PROT_READ, MAP_SHARED, fd, 0);
-	if (mem == MAP_FAILED) {
+	if (smem == MAP_FAILED) {
 		ksft_test_result_fail("mmap() failed\n");
 		goto munmap;
 	}
@@ -1696,7 +1696,7 @@ static void run_with_memfd_hugetlb(non_anon_test_fn fn, const char *desc,
 	fn(mem, smem, hugetlbsize);
 munmap:
 	munmap(mem, hugetlbsize);
-	if (mem != MAP_FAILED)
+	if (smem != MAP_FAILED)
 		munmap(smem, hugetlbsize);
 close:
 	close(fd);
-- 
2.25.1