Fixed a crash when deleting a recording while cutting it

CONTRIBUTORS

@@ -1922,6 +1922,7 @@ Ville Skytt
  for fixing the Language header of the Serbian translation file
  for using pkg-config to get fribidi, freetype and fontconfig cflags and libs
  for making the Makefile also install the include files
+ for fixing a crash when deleting a recording while cutting it
 
 Steffen Beyer <cpunk@reactor.de>
  for fixing setting the colored button help after deleting a recording in case the next

HISTORY

@@ -6769,3 +6769,4 @@ Video Disk Recorder Revision History
   which DVB-S devices are connected to the same sat cable and are therefore "bonded".
   This obsoletes the LNBSHARE patch. Users of the LNBSHARE patch will need to newly
   set up their sat devices with the above options.
+- Fixed a crash when deleting a recording while cutting it (thanks to Ville Skyttä).

cutter.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: cutter.c 2.9 2011/10/09 16:09:58 kls Exp $
+ * $Id: cutter.c 2.10 2011/12/04 12:55:53 kls Exp $
  */
 
 #include "cutter.h"
@@ -100,6 +100,7 @@ void cCuttingThread::Action(void)
            if (fromIndex->Get(Index++, &FileNumber, &FileOffset, &Independent, &Length)) {
               if (FileNumber != CurrentFileNumber) {
                  fromFile = fromFileName->SetOffset(FileNumber, FileOffset);
+                 if (fromFile)
                     fromFile->SetReadAhead(MEGABYTE(20));
                  CurrentFileNumber = FileNumber;
                  }