From d765bcff7070dd8c909d708417398531b5dd5a35 Mon Sep 17 00:00:00 2001
From: Charles Kerr <charles@charleskerr.com>
Date: Sat, 16 Dec 2023 08:35:55 -0600
Subject: [PATCH] fix: -Wnull-dereference warning in
 TorrentFilter::countTorrentsPerMode()

---
 qt/TorrentFilter.cc | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/qt/TorrentFilter.cc b/qt/TorrentFilter.cc
index c3d5b940e..06733528f 100644
--- a/qt/TorrentFilter.cc
+++ b/qt/TorrentFilter.cc
@@ -240,9 +240,15 @@ bool TorrentFilter::filterAcceptsRow(int source_row, QModelIndex const& source_p
 
 std::array<int, FilterMode::NUM_MODES> TorrentFilter::countTorrentsPerMode() const
 {
-    std::array<int, FilterMode::NUM_MODES> torrent_counts = {};
+    auto* const torrent_model = dynamic_cast<TorrentModel*>(sourceModel());
+    if (torrent_model == nullptr)
+    {
+        return {};
+    }
 
-    for (auto const& tor : dynamic_cast<TorrentModel*>(sourceModel())->torrents())
+    auto torrent_counts = std::array<int, FilterMode::NUM_MODES>{};
+
+    for (auto const& tor : torrent_model->torrents())
     {
         for (int mode = 0; mode < FilterMode::NUM_MODES; ++mode)
         {