Fix a memory leak in the label printer driver (STR #4393)

Make sure we free CompBuffer and LastBuffer as needed in EndPage.


git-svn-id: svn+ssh://src.apple.com/svn/cups/cups.org/trunk@11755 a1ca3aef-8c08-0410-bb20-df032aa958be

1 files changed, 12 insertions, 7 deletions

diff --git a/filter/rastertolabel.c b/filter/rastertolabel.c
index 162307d65..6868a73e4 100644
--- a/filter/rastertolabel.c
+++ b/filter/rastertolabel.c
@@ -629,13 +629,6 @@ EndPage(ppd_file_t *ppd,		/* I - PPD file */
 
         puts("^IDR:CUPS.GRF^FS");
 	puts("^XZ");
-
-       /*
-        * Free compression buffers...
-	*/
-
-	free(CompBuffer);
-	free(LastBuffer);
         break;
 
     case ZEBRA_CPCL :
@@ -704,6 +697,18 @@ EndPage(ppd_file_t *ppd,		/* I - PPD file */
   */
 
   free(Buffer);
+
+  if (CompBuffer)
+  {
+    free(CompBuffer);
+    CompBuffer = NULL;
+  }
+
+  if (LastBuffer)
+  {
+    free(LastBuffer);
+    LastBuffer = NULL;
+  }
 }