diff options
Diffstat (limited to 'lib/igt_core.c')
| -rw-r--r-- | lib/igt_core.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/lib/igt_core.c b/lib/igt_core.c index 49fbf70d..cbbe79f8 100644 --- a/lib/igt_core.c +++ b/lib/igt_core.c @@ -1671,13 +1671,17 @@ static bool helper_was_alive(struct igt_helper_process *proc, * igt_stop_helper: * @proc: #igt_helper_process structure * - * Terminates a helper process. It is an error to call this on a helper process - * which hasn't been spawned yet. + * Terminates a helper process. It is legal to call this on a helper process + * which hasn't been spawned yet, e.g. if the helper was skipped due to + * HW restrictions. */ void igt_stop_helper(struct igt_helper_process *proc) { int status; + if (!proc->running) /* never even started */ + return; + /* failure here means the pid is already dead and so waiting is safe */ kill(proc->pid, proc->use_SIGKILL ? SIGKILL : SIGTERM); |