finit: Wait for the temporary udev before finit exited it

my sound card did not work after i updated to 3.1-rc2.

In short, it’s a bug of https://github.com/troglobit/finit/commit/00fe37174d7104204e1203956ac965f8fa996090. Finit exited the temporary udevd after setting up the devices tree, this is fine. But the point is, finit exited udevd before all his work were done. You need to use settle to wait. In detail, his work is not limited to /dev, also /run/udev. There’re lots of files to generate, If i am correct, temporary udevd exited before all files were generated.

My hot-fix patch is more easier to understand, just a proof of concept. Since there has been lots of new changes in code base, i am not sure if the code is suitable or not. I’d like to leave the work to you 😃.

--- a/src/finit.c	2018-01-19 14:52:57.765287302 +0000
+++ b/src/finit.c	2018-01-19 14:52:41.975333534 +0000
@@ -409,8 +409,5 @@
 		if (udev && whichp("udevadm")) {
 			run("udevadm trigger --action=add --type=subsystems");
 			run("udevadm trigger --action=add --type=devices");
-			run("udevadm settle --timeout=120");
-
-			/* Tell temporary udevd to exit, we'll start a monitored instance later */
-			run("udevadm control --exit");
+			run("udevadm settle --timeout=120 && udevadm control --exit");
 		}
 	}

EDIT: actually, it’s pulseaudio that did not work