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selftest/vm: uninitialized variable in main()

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[ 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@oracle.com>
Reviewed-by: Mina Almasry <almasrymina@google.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Dan Carpenter 2022-07-19 12:04:14 +03:00 committed by Greg Kroah-Hartman
parent 8d958b6356
commit c6bc611f37
1 changed files with 1 additions and 1 deletions
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tools/testing/selftests/vm/hugepage-mremap.c
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@ -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]);