diff mbox series

[03/14] selftests/mm: Fix strncpy() length

Message ID 20241209095019.1732120-4-kevin.brodsky@arm.com (mailing list archive)
State New
Headers show
Series pkeys kselftests improvements | expand

Commit Message

Kevin Brodsky Dec. 9, 2024, 9:50 a.m. UTC 
GCC complains (with -O2) that the length is equal to the destination
size, which is indeed invalid. Subtract 1 from the size of the array
to leave room for '\0'.

Signed-off-by: Kevin Brodsky <kevin.brodsky@arm.com>
---
 tools/testing/selftests/mm/write_to_hugetlbfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/tools/testing/selftests/mm/write_to_hugetlbfs.c b/tools/testing/selftests/mm/write_to_hugetlbfs.c
index 1289d311efd7..34c91f7e6128 100644
--- a/tools/testing/selftests/mm/write_to_hugetlbfs.c
+++ b/tools/testing/selftests/mm/write_to_hugetlbfs.c
@@ -89,7 +89,7 @@  int main(int argc, char **argv)
 			size = atoi(optarg);
 			break;
 		case 'p':
-			strncpy(path, optarg, sizeof(path));
+			strncpy(path, optarg, sizeof(path) - 1);
 			break;
 		case 'm':
 			if (atoi(optarg) >= MAX_METHOD) {