Check for NULL bufer in silc_buffer_clear.

diff --git a/lib/silcutil/silcbuffer.h b/lib/silcutil/silcbuffer.h
index 149adc1dffd6a2c587278c10a34654827dd62bd7..4dc1472ae6822fc5bff68575c5db519c7e0c3604 100644 (file)
--- a/lib/silcutil/silcbuffer.h
+++ b/lib/silcutil/silcbuffer.h
@@ -591,6 +591,8 @@ SilcBuffer silc_buffer_alloc_size(SilcUInt32 len)
 static inline
 void silc_buffer_clear(SilcBuffer sb)
 {
+  if (!sb)
+    return;
   memset(sb->head, 0, sb->truelen);
   sb->data = sb->head;
   sb->tail = sb->head;