--- a/src/gui/image/qppmhandler.cpp	Tue Jul 06 15:10:48 2010 +0300
+++ b/src/gui/image/qppmhandler.cpp	Wed Aug 18 10:37:55 2010 +0300
@@ -409,13 +409,15 @@
 
 bool QPpmHandler::canRead() const
 {
-    if (state == Ready) {
-        if (!canRead(device(), &subType))
-            return false;
+    if (state == Ready && !canRead(device(), &subType))
+        return false;
+
+    if (state != Error) {
         setFormat(subType);
         return true;
     }
-    return state != Error;
+
+    return false;
 }
 
 bool QPpmHandler::canRead(QIODevice *device, QByteArray *subType)