Return error only if exists.

aniastrzezek · aniastrzezek · commit a639f49c7395 · 2016-11-30T13:53:00.000+01:00
diff --git a/Downloader.m b/Downloader.m
@@ -86,7 +86,7 @@ - (void)URLSession:(NSURLSession *)session downloadTask:(NSURLSessionDownloadTas
 
 - (void)URLSession:(NSURLSession *)session task:(NSURLSessionTask *)task didCompleteWithError:(NSError *)error
 {
-  return _params.errorCallback(error);
+  return error ? _params.errorCallback(error) : nil;
 }
 
 

Original file line number	Diff line number	Diff line change
`@@ -86,7 +86,7 @@ - (void)URLSession:(NSURLSession *)session downloadTask:(NSURLSessionDownloadTas`
`86`	`86`
`87`	`87`	`- (void)URLSession:(NSURLSession )session task:(NSURLSessionTask )task didCompleteWithError:(NSError *)error`
`88`	`88`	`{`
`89`		`- return _params.errorCallback(error);`
	`89`	`+ return error ? _params.errorCallback(error) : nil;`
`90`	`90`	`}`
`91`	`91`
`92`	`92`