hotplugd restart problem

[Alexey Vatchenko]

Hi!
If something is running which is started from attach script, restarting of
hotplugd fails because /dev/hotplug is occupied by child process.

Attached is the patch to fix this problem.

Index: usr.sbin/hotplugd/hotplugd.c
===================================================================
RCS file: /cvs/src/usr.sbin/hotplugd/hotplugd.c,v
retrieving revision 1.13
diff -u -p -r1.13 hotplugd.c
--- usr.sbin/hotplugd/hotplugd.c        19 Nov 2015 06:05:40 -0000      1.13
+++ usr.sbin/hotplugd/hotplugd.c        25 Jul 2016 11:05:12 -0000
@@ -82,6 +82,7 @@ main(int argc, char *argv[])
 
        if ((devfd = open(device, O_RDONLY)) == -1)
                err(1, "%s", device);
+       fcntl(devfd, F_SETFD, FD_CLOEXEC);
 
        bzero(&sact, sizeof(sact));
        sigemptyset(&sact.sa_mask);