From daa0b06ae8621f731327b547f268bddc9784001b Mon Sep 17 00:00:00 2001
From: Nicolas Fella <nicolas.fella@gmx.de>
Date: Sat, 10 Jun 2023 14:49:30 +0200
Subject: [PATCH] [previewjob] Check whether thumbRootDevice is valid before
 access

storageAccessFromPath may return an invalid device, e.g. because the thumbnail directory doesn't exist yet

In that case we must not use the device

BUG: 470845
(cherry picked from commit 3fdcb7bcdae3a3dc95ce5b3d15740802450b129e)
---
 src/widgets/previewjob.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/widgets/previewjob.cpp b/src/widgets/previewjob.cpp
index cffdce302..214e3b3b3 100644
--- a/src/widgets/previewjob.cpp
+++ b/src/widgets/previewjob.cpp
@@ -829,7 +829,7 @@ PreviewJobPrivate::CachePolicy PreviewJobPrivate::canBeCached(const QString &pat
             // Or, if the checked device is unencrypted, allow thumbnailing.
             if (device.as<Solid::StorageAccess>()->isEncrypted()) {
                 const Solid::Device thumbRootDevice = Solid::Device::storageAccessFromPath(thumbRoot);
-                shouldAllow = thumbRootDevice.as<Solid::StorageAccess>()->isEncrypted();
+                shouldAllow = thumbRootDevice.isValid() && thumbRootDevice.as<Solid::StorageAccess>()->isEncrypted();
             } else {
                 shouldAllow = true;
             }
-- 
2.41.0