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-rw-r--r--generic/tkUndo.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/generic/tkUndo.c b/generic/tkUndo.c
index e875bf3..326c818 100644
--- a/generic/tkUndo.c
+++ b/generic/tkUndo.c
@@ -9,7 +9,7 @@
* See the file "license.terms" for information on usage and redistribution of
* this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
- * RCS: @(#) $Id: tkUndo.c,v 1.13 2007/12/13 15:24:21 dgp Exp $
+ * RCS: @(#) $Id: tkUndo.c,v 1.13.2.1 2009/02/06 08:13:23 das Exp $
*/
#include "tkInt.h"
@@ -131,7 +131,7 @@ TkUndoClearStack(
TkUndoSubAtom *sub;
sub = elem->apply;
- while (sub->next != NULL) {
+ while (sub != NULL) {
TkUndoSubAtom *next = sub->next;
if (sub->action != NULL) {
@@ -142,7 +142,7 @@ TkUndoClearStack(
}
sub = elem->revert;
- while (sub->next != NULL) {
+ while (sub != NULL) {
TkUndoSubAtom *next = sub->next;
if (sub->action != NULL) {
@@ -399,7 +399,7 @@ TkUndoSetDepth(
prevelem = elem;
if (elem->type != TK_UNDO_SEPARATOR) {
TkUndoSubAtom *sub = elem->apply;
- while (sub->next != NULL) {
+ while (sub != NULL) {
TkUndoSubAtom *next = sub->next;
if (sub->action != NULL) {
@@ -409,7 +409,7 @@ TkUndoSetDepth(
sub = next;
}
sub = elem->revert;
- while (sub->next != NULL) {
+ while (sub != NULL) {
TkUndoSubAtom *next = sub->next;
if (sub->action != NULL) {