From 022aa2146e960c6f4bc192dac723d34863a3b159 Mon Sep 17 00:00:00 2001
From: Olivier Poitrey <rs@dailymotion.com>
Date: Wed, 14 Nov 2012 00:59:29 +0100
Subject: [PATCH] Fix a race condition (fix #220)

---
 SDWebImage/SDWebImageDownloaderOperation.m | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/SDWebImage/SDWebImageDownloaderOperation.m b/SDWebImage/SDWebImageDownloaderOperation.m
index 0af2733..fce2e7b 100644
--- a/SDWebImage/SDWebImageDownloaderOperation.m
+++ b/SDWebImage/SDWebImageDownloaderOperation.m
@@ -228,7 +228,7 @@
                 {
                     UIImage *image = [UIImage decodedImageWithImage:SDScaledImageForPath(self.request.URL.absoluteString, [UIImage imageWithCGImage:partialImageRef])];
                     CGImageRelease(partialImageRef);
-                    self.completedBlock(image, nil, NO);
+                    if (self.completedBlock) self.completedBlock(image, nil, NO);
                 }
             }