From e8aad3b33e3cccbd7cd772b87af55e8d120d4c6f Mon Sep 17 00:00:00 2001
From: philmoz <philmoz@users.noreply.github.com>
Date: Tue, 6 Aug 2024 11:46:25 +1000
Subject: [PATCH] fix(cpn): simulator crashes in SD browser (#5387)

---
 radio/src/gui/colorlcd/radio/radio_sdmanager.cpp | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/radio/src/gui/colorlcd/radio/radio_sdmanager.cpp b/radio/src/gui/colorlcd/radio/radio_sdmanager.cpp
index bf6be7faa..356a8d8d3 100644
--- a/radio/src/gui/colorlcd/radio/radio_sdmanager.cpp
+++ b/radio/src/gui/colorlcd/radio/radio_sdmanager.cpp
@@ -256,12 +256,16 @@ void RadioSdManagerPage::build(Window * window)
   browser->setFileSelected([=](const char* path, const char* name, const char* fullpath) {
       preview->setFile(nullptr);
       loading->hide();
-      auto ext = getFileExtension(fullpath);
-      if (strcasecmp(ext, ".bmp") == 0 || strcasecmp(ext, ".png") == 0 ||
-          strcasecmp(ext, ".jpg") == 0 || strcasecmp(ext, ".jpeg") == 0) {
-        previewFilename = fullpath;
-        loadPreview = 10;
-        loading->show();
+      if (fullpath) {
+        auto ext = getFileExtension(fullpath);
+        if (ext) {
+          if (strcasecmp(ext, ".bmp") == 0 || strcasecmp(ext, ".png") == 0 ||
+              strcasecmp(ext, ".jpg") == 0 || strcasecmp(ext, ".jpeg") == 0) {
+            previewFilename = fullpath;
+            loadPreview = 10;
+            loading->show();
+          }
+        }
       }
   });
   browser->refresh();