autofs-5.1.7 - add missing free in handle_mounts()

From: Ian Kent <raven@themaw.net>

Coverity: error[doubleFree]: Memory pointed to by 'root' is freed twice

No it's not, but root isn't freed before the fatal call which crashes
automount so add a free() before the fatal() call.

It appears Coverity doesn't recognise pthread_exit() as an exit condition.

Signed-off-by: Ian Kent <raven@themaw.net>
---
 CHANGELOG          |    1 +
 daemon/automount.c |    2 ++
 2 files changed, 3 insertions(+)

--- autofs-5.1.4.orig/CHANGELOG
+++ autofs-5.1.4/CHANGELOG
@@ -50,6 +50,7 @@
 - check for offset with no mount location.
 - remove mounts_mutex.
 - remove unused variable from get_exports().
+- add missing free in handle_mounts().
 
 xx/xx/2018 autofs-5.1.5
 - fix flag file permission.
--- autofs-5.1.4.orig/daemon/automount.c
+++ autofs-5.1.4/daemon/automount.c
@@ -1917,6 +1917,8 @@ void *handle_mounts(void *arg)
 	status = pthread_mutex_lock(&suc->mutex);
 	if (status) {
 		logerr("failed to lock startup condition mutex!");
+		if (root)
+			free(root);
 		fatal(status);
 	}