Release the CGImageRef as this is no longer required5.4

Change-Id: I837869f739032ddea60e7e894795c921cbf730db
Reviewed-by: Timur Pocheptsov <Timur.Pocheptsov@digia.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/src/macextras/qmacfunctions_mac.mm b/src/macextras/qmacfunctions_mac.mm
index 38f941f..34af26f 100644
--- a/src/macextras/qmacfunctions_mac.mm
+++ b/src/macextras/qmacfunctions_mac.mm
@@ -67,10 +67,14 @@ namespace QtMac
 */
 NSImage* toNSImage(const QPixmap &pixmap)
 {
-    NSBitmapImageRep *bitmapRep = [[NSBitmapImageRep alloc] initWithCGImage:toCGImageRef(pixmap)];
+    if (pixmap.isNull())
+        return 0;
+    CGImageRef cgimage = toCGImageRef(pixmap);
+    NSBitmapImageRep *bitmapRep = [[NSBitmapImageRep alloc] initWithCGImage:cgimage];
     NSImage *image = [[NSImage alloc] init];
     [image addRepresentation:bitmapRep];
     [bitmapRep release];
+    CFRelease(cgimage);
     return image;
 }