_InitReader(): source can only be NULL if we tried to allocate it ourself, so

we can set fErr to B_NO_MEMORY in that case.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@30989 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/kits/media/MediaFile.cpp

@@ -392,8 +392,10 @@ BMediaFile::_InitReader(BDataIO* source, int32 flags)
 {
 	CALLED();
 
-	if (source == NULL)
+	if (source == NULL) {
+		fErr = B_NO_MEMORY;
 		return;
+	}
 
 	fSource = source;