[PATCH] selftests/move_mount_set_group: fix inconsistent return type in move_mount_set_group_supported()

[Miaoqian Lin]

The function is declared to return bool
but returns -1 on multiple error paths, which is inconsistent and
misleading. Fix this by returning false on all error paths.

Fixes: 8374f43123a5 ("tests: add move_mount(MOVE_MOUNT_SET_GROUP) selftest")
Signed-off-by: Miaoqian Lin <linmq...@gmail.com>
---
 .../move_mount_set_group_test.c                    | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git 
a/tools/testing/selftests/move_mount_set_group/move_mount_set_group_test.c 
b/tools/testing/selftests/move_mount_set_group/move_mount_set_group_test.c
index bcf51d785a37..3f2c94acb29a 100644
--- a/tools/testing/selftests/move_mount_set_group/move_mount_set_group_test.c
+++ b/tools/testing/selftests/move_mount_set_group/move_mount_set_group_test.c
@@ -197,26 +197,26 @@ static bool move_mount_set_group_supported(void)
 
        if (mount("testing", "/tmp", "tmpfs", MS_NOATIME | MS_NODEV,
                  "size=100000,mode=700"))
-               return -1;
+               return false;
 
        if (mount(NULL, "/tmp", NULL, MS_PRIVATE, 0))
-               return -1;
+               return false;
 
        if (mkdir(SET_GROUP_FROM, 0777))
-               return -1;
+               return false;
 
        if (mkdir(SET_GROUP_TO, 0777))
-               return -1;
+               return false;
 
        if (mount("testing", SET_GROUP_FROM, "tmpfs", MS_NOATIME | MS_NODEV,
                  "size=100000,mode=700"))
-               return -1;
+               return false;
 
        if (mount(SET_GROUP_FROM, SET_GROUP_TO, NULL, MS_BIND, NULL))
-               return -1;
+               return false;
 
        if (mount(NULL, SET_GROUP_FROM, NULL, MS_SHARED, 0))
-               return -1;
+               return false;
 
        ret = syscall(__NR_move_mount, AT_FDCWD, SET_GROUP_FROM,
                      AT_FDCWD, SET_GROUP_TO, MOVE_MOUNT_SET_GROUP);
-- 
2.35.1