periodic.timer_fd's value is 0 on inititlize-failed case, if no value-checking before read(), the code will run as read(STDIN). This patch fixed above case. Signed-off-by: Zhao Lei <zhaolei@xxxxxxxxxxxxxx> --- task-utils.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/task-utils.c b/task-utils.c index a4017ff..12b0002 100644 --- a/task-utils.c +++ b/task-utils.c @@ -119,6 +119,9 @@ void task_period_wait(struct task_info *info) if (!info) return; + if (info->periodic.timer_fd == 0) + return; + ret = read(info->periodic.timer_fd, &missed, sizeof (missed)); if (ret == -1) return; -- 1.8.5.1 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
