The "len" variable needs to be signed for the error handling to work properly.
Fixes: 596092ef8bea ("selftests/bpf: enable all available cgroup v2 controllers") Signed-off-by: Dan Carpenter dan.carpenter@oracle.com --- tools/testing/selftests/bpf/cgroup_helpers.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/bpf/cgroup_helpers.c b/tools/testing/selftests/bpf/cgroup_helpers.c index 0d89f0396be4..e95c33e333a4 100644 --- a/tools/testing/selftests/bpf/cgroup_helpers.c +++ b/tools/testing/selftests/bpf/cgroup_helpers.c @@ -47,7 +47,7 @@ int enable_all_controllers(char *cgroup_path) char buf[PATH_MAX]; char *c, *c2; int fd, cfd; - size_t len; + ssize_t len;
snprintf(path, sizeof(path), "%s/cgroup.controllers", cgroup_path); fd = open(path, O_RDONLY);