Added an error message there are some unspecified required probes

diff --git a/pv/data/decoderstack.cpp b/pv/data/decoderstack.cpp
index 8284c7937c7a7ee6a68f334a587bee7374e97fcb..f642b11eaf92db972f4c0c01745db0b42ace3b87 100644 (file)
--- a/pv/data/decoderstack.cpp
+++ b/pv/data/decoderstack.cpp
@@ -322,8 +322,11 @@ void DecoderStack::decode_proc()
 
        // Check that all decoders have the required probes
        BOOST_FOREACH(const shared_ptr<decode::Decoder> &dec, _stack)
-               if (!dec->have_required_probes())
+               if (!dec->have_required_probes()) {
+                       _error_message = tr("One or more required probes "
+                               "have not been specified");
                        return;
+               }
 
        // Create the session
        srd_session_new(&session);