From 5476d2e5aab18b7cafc4d5762c3064639254dde5 Mon Sep 17 00:00:00 2001
From: Brian Somers <brian@FreeBSD.org>
Date: Mon, 15 Apr 2002 00:14:40 +0000
Subject: [PATCH] When it's necessary to kldload tun(4), don't forget to re-try
 to open tun0.

Submitted by:	qhwt@myrealbox.com
---
 usr.sbin/ppp/bundle.c |  7 ++++---
 usr.sbin/ppp/defs.c   | 14 ++++++++++----
 usr.sbin/ppp/defs.h   |  2 +-
 3 files changed, 15 insertions(+), 8 deletions(-)

diff --git a/usr.sbin/ppp/bundle.c b/usr.sbin/ppp/bundle.c
index 64cce9d17849..48c2a685498e 100644
--- a/usr.sbin/ppp/bundle.c
+++ b/usr.sbin/ppp/bundle.c
@@ -708,10 +708,11 @@ bundle_Create(const char *prefix, int type, int unit)
 #if defined(__FreeBSD__) && !defined(NOKLDLOAD)
       if (bundle.unit == minunit && !kldtried++) {
         /*
-	 * Attempt to load the tunnel interface KLD if it isn't loaded
-	 * already.
+         * Attempt to load the tunnel interface KLD if it isn't loaded
+         * already.
          */
-        loadmodules(LOAD_VERBOSLY, "if_tun", NULL);
+        if (loadmodules(LOAD_VERBOSLY, "if_tun", NULL))
+          bundle.unit--;
         continue;
       }
 #endif
diff --git a/usr.sbin/ppp/defs.c b/usr.sbin/ppp/defs.c
index b61b7de216b3..a4929ccc9845 100644
--- a/usr.sbin/ppp/defs.c
+++ b/usr.sbin/ppp/defs.c
@@ -420,19 +420,25 @@ Concatinate(char *buf, size_t sz, int argc, const char *const *argv)
   }
 }
 
-void
+int
 loadmodules(int how, const char *module, ...)
 {
+  int loaded = 0;
 #if defined(__FreeBSD__) && !defined(NOKLDLOAD)
   va_list ap;
 
   va_start(ap, module);
   while (module != NULL) {
-    if (modfind(module) == -1 && ID0kldload(module) == -1 &&
-        how == LOAD_VERBOSLY)
-      log_Printf(LogWARN, "%s: Cannot load module\n", module);
+    if (modfind(module) == -1) {
+      if (ID0kldload(module) == -1) {
+        if (how == LOAD_VERBOSLY)
+          log_Printf(LogWARN, "%s: Cannot load module\n", module);
+      } else
+        loaded++;
+    }
     module = va_arg(ap, const char *);
   }
   va_end(ap);
 #endif
+  return loaded;
 }
diff --git a/usr.sbin/ppp/defs.h b/usr.sbin/ppp/defs.h
index 31a401186d1b..2be76867447b 100644
--- a/usr.sbin/ppp/defs.h
+++ b/usr.sbin/ppp/defs.h
@@ -139,4 +139,4 @@ extern void SetTitle(const char *);
 extern fd_set *mkfdset(void);
 extern void zerofdset(fd_set *);
 extern void Concatinate(char *, size_t, int, const char *const *);
-extern void loadmodules(int, const char *, ...);
+extern int loadmodules(int, const char *, ...);