Clear existing inotify watch before processing.

Likewise when re-processing an event, we want to drop the existing
inotify watch first to avoid side-effects.

diff --git a/udev/udevd.c b/udev/udevd.c
index e4fa2b63e10a58044d6cf356139bef8095aaadf0..50205f1e43c3e4ddee4f3049bab5c9ede42510a1 100644 (file)
--- a/udev/udevd.c
+++ b/udev/udevd.c
@@ -215,6 +215,11 @@ static void event_fork(struct udev_event *event)
                /* set timeout to prevent hanging processes */
                alarm(UDEV_EVENT_TIMEOUT);
 
+               /* clear any existing udev watch on the node */
+               if (inotify_fd != -1 &&
+                   major(udev_device_get_devnum(event->dev)) != 0)
+                       udev_watch_clear(event->udev, event->dev);
+
                /* apply rules, create node, symlinks */
                err = udev_event_execute_rules(event, rules);
 
@@ -229,12 +234,9 @@ static void event_fork(struct udev_event *event)
                /* apply/restore inotify watch */
                if (err == 0 && event->inotify_watch && inotify_fd != -1 &&
                    major(udev_device_get_devnum(event->dev)) != 0 &&
-                   strcmp(udev_device_get_action(event->dev), "remove") != 0) {
+                   strcmp(udev_device_get_action(event->dev), "remove") != 0)
                        info(event->udev, "device will be watched for changes\n");
                        udev_watch_begin(event->udev, event->dev);
-               } else {
-                       udev_watch_clear(event->udev, event->dev);
-               }
 
                info(event->udev, "seq %llu exit with %i\n", udev_device_get_seqnum(event->dev), err);
                logging_close();