[frameworks-solid] [Bug 492578] when i tried formatting my fat32 micro sdcard in kde partition manager plasmashell crashed in Solid::StorageAccess::filePath()

[Nicolas Fella]

https://bugs.kde.org/show_bug.cgi?id=492578

--- Comment #34 from Nicolas Fella <nicolas.fella at gmx.de> ---
Git commit 11a21dfad782c3862f6a3fba9bcf4fd5c5005777 by Nicolas Fella.
Committed on 13/12/2024 at 16:15.
Pushed by nicolasfella into branch 'Frameworks/6.9'.

Add null check for StorageAccess interface in storageAccessFromPath

In slotInterfacesRemoved we do a remove+add cycle

During that cycle the backend object is null, so querying the StorageAccess
interface will return null.

This means that when something calls storageAccessFromPath in reaction to
the removed signal we will get a null StorageAccess.

The overall design is a bit shaky here, but we can handle it more gracefully
by checking the result for null
Related: bug 497299

SENTRY: PLASMA-WORKSPACE-11Q1

SENTRY: KDECONNECT-KDE-BK

SENTRY: DOLPHIN-320

SENTRY: KDED-7M

SENTRY: FALLTHROUGH-62S

SENTRY: KATE-Y3

SENTRY: KDENLIVE-VR

SENTRY: XDG-DESKTOP-PORTAL-KDE-3R

SENTRY: KDEVELOP-93

SENTRY: KRUNNER-GD

SENTRY: PLASMA-WORKSPACE-1986

SENTRY: ELISA-9H
(cherry picked from commit 2f8825b489ecc69bed67a49abdcb643d1fa42b4a)

M  +5    -0    src/solid/devices/frontend/devicemanager.cpp

https://invent.kde.org/frameworks/solid/-/commit/11a21dfad782c3862f6a3fba9bcf4fd5c5005777

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