Make sure we can apply deprecated display filters.

Deprecated filters are still valid. Update display filter checks to make
sure we can apply them.

Bug: 11438
Change-Id: Ib5e009c070b40912434e0ffd771203ed1e1ba093
Reviewed-on: https://code.wireshark.org/review/10154
Petri-Dish: Gerald Combs <gerald@wireshark.org>
Tested-by: Jeff Morriss <jeff.morriss.ws@gmail.com>
Reviewed-by: Stig Bjørlykke <stig@bjorlykke.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/ui/qt/display_filter_edit.cpp b/ui/qt/display_filter_edit.cpp
index 6ac78e73ca..620599e306 100644
--- a/ui/qt/display_filter_edit.cpp
+++ b/ui/qt/display_filter_edit.cpp
@@ -309,7 +309,7 @@ bool DisplayFilterEdit::checkFilter()
 {
     checkFilter(text());
 
-    return (syntaxState() == Valid || syntaxState() == Empty);
+    return syntaxState() != Invalid;
 }
 
 void DisplayFilterEdit::checkFilter(const QString& text)
@@ -348,7 +348,7 @@ void DisplayFilterEdit::checkFilter(const QString& text)
         bookmark_button_->setEnabled(syntaxState() == Valid || syntaxState() == Deprecated);
     }
     if (apply_button_) {
-        apply_button_->setEnabled(SyntaxState() != Invalid);
+        apply_button_->setEnabled(syntaxState() != Invalid);
     }
 }
 
@@ -457,7 +457,7 @@ void DisplayFilterEdit::clearFilter()
 
 void DisplayFilterEdit::applyDisplayFilter()
 {
-    if (syntaxState() != Valid && syntaxState() != Empty) {
+    if (syntaxState() == Invalid) {
         return;
     }