X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=pv%2Fdata%2Fdecoderstack.cpp;h=c197e019fd16c6b1e1d5d35ff2aa02d62b9e2bfa;hb=df4c1a0691f6d3a457a475e496186d5a9decc54a;hp=8284c7937c7a7ee6a68f334a587bee7374e97fcb;hpb=c1b2865ea8b10c4b41360b2fd1974a8bebaa0dea;p=pulseview.git

diff --git a/pv/data/decoderstack.cpp b/pv/data/decoderstack.cpp
index 8284c793..c197e019 100644
--- a/pv/data/decoderstack.cpp
+++ b/pv/data/decoderstack.cpp
@@ -193,6 +193,14 @@ void DecoderStack::begin_decode()
 
 	clear();
 
+	// Check that all decoders have the required probes
+	BOOST_FOREACH(const shared_ptr<decode::Decoder> &dec, _stack)
+		if (!dec->have_required_probes()) {
+			_error_message = tr("One or more required probes "
+				"have not been specified");
+			return;
+		}
+
 	// Add classes
 	BOOST_FOREACH (const shared_ptr<decode::Decoder> &dec, _stack)
 	{
@@ -320,11 +328,6 @@ void DecoderStack::decode_proc()
 	assert(data);
 	assert(_snapshot);
 
-	// Check that all decoders have the required probes
-	BOOST_FOREACH(const shared_ptr<decode::Decoder> &dec, _stack)
-		if (!dec->have_required_probes())
-			return;
-
 	// Create the session
 	srd_session_new(&session);
 	assert(session);