From: Dan Carpenter <dan.carpenter@xxxxxxxxxx> [ Upstream commit 360b420dbded8ad5b70a41de98e77354dd9e7d36 ] Initialize "length" to zero by default. Link: https://lkml.kernel.org/r/YtZzjvHXVXMXxpXO@kili Fixes: ff712a627f72 ("selftests/vm: cleanup hugetlb file after mremap test") Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> Reviewed-by: Mina Almasry <almasrymina@xxxxxxxxxx> Reviewed-by: Muchun Song <songmuchun@xxxxxxxxxxxxx> Cc: Mike Kravetz <mike.kravetz@xxxxxxxxxx> Cc: Shuah Khan <shuah@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- tools/testing/selftests/vm/hugepage-mremap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/vm/hugepage-mremap.c b/tools/testing/selftests/vm/hugepage-mremap.c index 1d689084a54b..22546f279534 100644 --- a/tools/testing/selftests/vm/hugepage-mremap.c +++ b/tools/testing/selftests/vm/hugepage-mremap.c @@ -107,7 +107,7 @@ static void register_region_with_uffd(char *addr, size_t len) int main(int argc, char *argv[]) { - size_t length; + size_t length = 0; if (argc != 2 && argc != 3) { printf("Usage: %s [length_in_MB] <hugetlb_file>\n", argv[0]); -- 2.35.1
