1 files changed, 32 insertions, 0 deletions
diff --git a/extra/qt/qt-4.7.1-fix-qtbug-15857.patch b/extra/qt/qt-4.7.1-fix-qtbug-15857.patch
new file mode 100644
index 000000000..4a0dfb8b1
--- /dev/null
+++ b/extra/qt/qt-4.7.1-fix-qtbug-15857.patch
@@ -0,0 +1,32 @@
+From 6ae84f1183e91c910ca92a55e37f8254ace805c0 Mon Sep 17 00:00:00 2001
+From: Jiang Jiang <jiang.jiang@nokia.com>
+Date: Mon, 6 Dec 2010 13:07:36 +0100
+Subject: [PATCH] Fix QTextEdit::selectAll crash from textChanged()
+
+Doing selectAll() after the entire block of text has been removed
+will cause this crash, because we didn't check if the block we
+found is valid or not.
+
+Task-number: QTBUG-15857
+Reviewed-by: Eskil
+---
+ src/gui/text/qtextcursor.cpp |    3 +++
+ 1 files changed, 3 insertions(+), 0 deletions(-)
+
+diff --git a/src/gui/text/qtextcursor.cpp b/src/gui/text/qtextcursor.cpp
+index 769ab2f..f73cc4b 100644
+--- a/src/gui/text/qtextcursor.cpp
++++ b/src/gui/text/qtextcursor.cpp
+@@ -363,6 +363,9 @@ bool QTextCursorPrivate::movePosition(QTextCursor::MoveOperation op, QTextCursor
+     bool adjustX = true;
+     QTextBlock blockIt = block();
+ 
++    if (!blockIt.isValid())
++        return false;
++
+     if (op >= QTextCursor::Left && op <= QTextCursor::WordRight
+         && blockIt.textDirection() == Qt::RightToLeft) {
+         if (op == QTextCursor::Left)
+-- 
+1.6.1
+