client/cmdlfem4x.c: Fix a warning about probable uninitialized variable with gcc 4.4

diff --git a/client/cmdlfem4x.c b/client/cmdlfem4x.c
index fea4bd2960409118d222f5127a697d1010449b2f..8bb4d1091e08ed3ea463a02796d12aa66da1f1a4 100644 (file)
--- a/client/cmdlfem4x.c
+++ b/client/cmdlfem4x.c
@@ -281,6 +281,7 @@ int CmdEM4x50Read(const char *Cmd)
 
   high= low= 0;
   clock= 64;
+  memset(tmpbuff, 0, MAX_GRAPH_TRACE_LEN / 64);
 
   /* first get high and low values */
   for (i = 0; i < GraphTraceLen; i++)