X-Git-Url: http://git.silcnet.org/gitweb/?a=blobdiff_plain;f=lib%2Fsilcutil%2Funix%2Fsilcunixmutex.c;h=1336eaeea7d57592db62d2983d3f4dda6efca471;hb=d1e71f42379e8b5cd0748a7aeae8561b02cfe53d;hp=d6eb0f233f973dd63e51d183b29b5ad577fb4696;hpb=34bb35a2496ec0402bb4d6c2546147cd37b27007;p=crypto.git

diff --git a/lib/silcutil/unix/silcunixmutex.c b/lib/silcutil/unix/silcunixmutex.c
index d6eb0f23..1336eaee 100644
--- a/lib/silcutil/unix/silcunixmutex.c
+++ b/lib/silcutil/unix/silcunixmutex.c
@@ -4,13 +4,12 @@
 
   Author: Pekka Riikonen <priikone@silcnet.org>
 
-  Copyright (C) 2001 Pekka Riikonen
+  Copyright (C) 2001 - 2005 Pekka Riikonen
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
-  the Free Software Foundation; either version 2 of the License, or
-  (at your option) any later version.
-  
+  the Free Software Foundation; version 2 of the License.
+
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
@@ -45,27 +44,33 @@ bool silc_mutex_alloc(SilcMutex *mutex)
 void silc_mutex_free(SilcMutex mutex)
 {
 #ifdef SILC_THREADS
-  pthread_mutex_destroy(&mutex->mutex);
-  silc_free(mutex);
+  if (mutex) {
+    pthread_mutex_destroy(&mutex->mutex);
+    silc_free(mutex);
+  }
 #endif /* SILC_THREADS */
 }
 
 void silc_mutex_lock(SilcMutex mutex)
 {
 #ifdef SILC_THREADS
-  if (pthread_mutex_lock(&mutex->mutex))
-    assert(FALSE);
-  assert(mutex->locked == 0);
-  mutex->locked = 1;
+  if (mutex) {
+    if (pthread_mutex_lock(&mutex->mutex))
+      assert(FALSE);
+    assert(mutex->locked == 0);
+    mutex->locked = 1;
+  }
 #endif /* SILC_THREADS */
 }
 
 void silc_mutex_unlock(SilcMutex mutex)
 {
 #ifdef SILC_THREADS
-  assert(mutex->locked == 1);
-  mutex->locked = 0;
-  if (pthread_mutex_unlock(&mutex->mutex))
-    assert(FALSE);
+  if (mutex) {
+    assert(mutex->locked == 1);
+    mutex->locked = 0;
+    if (pthread_mutex_unlock(&mutex->mutex))
+      assert(FALSE);
+  }
 #endif /* SILC_THREADS */
 }