fix bug get_timer

2023-12-01 04:59:56 -05:00
parent 21862f1271
commit 0d1f57f06e
2 changed files with 10 additions and 2 deletions
--- a/source/module/monitor_kernel.c
+++ b/source/module/monitor_kernel.c
@@ -69,7 +69,10 @@ static long device_ioctl(struct file *file, unsigned int ioctl_num,
    warg.time_ns =
        warg.time_ns == 0 ? def_interval_ns : warg.time_ns; // default 10us
    // start watch variable
-    start_watch_variable(warg);
+    ret = start_watch_variable(warg);
+    if (ret) {
+      printk(KERN_INFO "start_watch_variable failed\n");
+    }
    break;
  case IOCTL_DUMP_LOG:
    printk(KERN_INFO "variable_monitor IOCTL_DUMP_LOG\n");