* generic/tclVar.c (TclVarTraceExists): Corrected excessive mem

	use when info exists was called on a non-existent array element.
	[BUG: 119213, 119336]

1 files changed, 17 insertions, 18 deletions

diff --git a/generic/tclVar.c b/generic/tclVar.c
index b8a0271..53a8f6c 100644
--- a/generic/tclVar.c
+++ b/generic/tclVar.c
@@ -14,7 +14,7 @@
  * See the file "license.terms" for information on usage and redistribution
  * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
  *
- * RCS: @(#) $Id: tclVar.c,v 1.23 2000/08/25 20:39:31 ericm Exp $
+ * RCS: @(#) $Id: tclVar.c,v 1.24 2000/11/01 21:48:45 hobbs Exp $
  */
 
 #include "tclInt.h"
@@ -4863,7 +4863,6 @@ TclVarTraceExists(interp, varName)
 {
     Var *varPtr;
     Var *arrayPtr;
-    char *msg;
 
     /*
      * The choice of "create" flag values is delicate here, and
@@ -4876,27 +4875,27 @@ TclVarTraceExists(interp, varName)
      */
 
     varPtr = TclLookupVar(interp, varName, (char *) NULL,
-            0, "access",
-            /*createPart1*/ 0, /*createPart2*/ 1, &arrayPtr);
+            0, "access", /*createPart1*/ 0, /*createPart2*/ 1, &arrayPtr);
+
     if (varPtr == NULL) {
 	return NULL;
     }
-    if ((varPtr != NULL) &&
-	    ((varPtr->tracePtr != NULL)
-	    || ((arrayPtr != NULL) && (arrayPtr->tracePtr != NULL)))) {
-	msg = CallTraces((Interp *)interp, arrayPtr, varPtr, varName,
+
+    if ((varPtr->tracePtr != NULL)
+	    || ((arrayPtr != NULL) && (arrayPtr->tracePtr != NULL))) {
+	CallTraces((Interp *)interp, arrayPtr, varPtr, varName,
 		(char *) NULL, TCL_TRACE_READS);
-	if (msg != NULL) {
-	    /*
-	     * If the variable doesn't exist anymore and no-one's using
-	     * it, then free up the relevant structures and hash table entries.
-	     */
+    }
 
-	    if (TclIsVarUndefined(varPtr)) {
-		CleanupVar(varPtr, arrayPtr);
-	    }
-	    return NULL;
-	}
+    /*
+     * If the variable doesn't exist anymore and no-one's using
+     * it, then free up the relevant structures and hash table entries.
+     */
+
+    if (TclIsVarUndefined(varPtr)) {
+	CleanupVar(varPtr, arrayPtr);
+	return NULL;
     }
+
     return varPtr;
 }