Add hook point on fstab mount failure

Check return code from `mount -na`, if there where any errors give
plugins a chance to do something about it.

Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>

finit.c

@@ -71,6 +71,7 @@ static int banner(void)
 
 int main(int argc, char* argv[])
 {
+	int err;
 	uev_ctx_t loop;
 
 	/*
@@ -151,7 +152,13 @@ int main(int argc, char* argv[])
 	plugin_run_hooks(HOOK_ROOTFS_UP);
 
 	umask(0);
-	run("/bin/mount -na");
+	print_desc("Mounting filesystems", NULL);
+
+	err = run("/bin/mount -na");
+	print_result(err);
+	if (err)
+		plugin_run_hooks(HOOK_MOUNT_ERROR);
+
 	run("/sbin/swapon -ea");
 	umask(0022);
 

plugin.h

@@ -43,6 +43,7 @@
 typedef enum {
 	/* Bootstrap hooks */
 	HOOK_ROOTFS_UP = 0,
+	HOOK_MOUNT_ERROR,
 	HOOK_BASEFS_UP,
 	HOOK_NETWORK_UP,
 	HOOK_SVC_UP,