Review Request 111626: Fix Amarok crash with Audio CD inserted

Commit Hook null at kde.org
Fri Aug 16 13:34:52 BST 2013


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http://git.reviewboard.kde.org/r/111626/
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(Updated Aug. 16, 2013, 12:34 p.m.)


Status
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This change has been marked as submitted.


Review request for Amarok, kdelibs and Solid.


Description
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https://bugs.kde.org/show_bug.cgi?id=314544#c40 says:

"Looking at the backtrace, KFilePlacesItem tries to detect Audio CDs as follows:

    Solid::Device d = device();
    if (d.isValid()) {
            if (m_access) {
                return QUrl(KUrl(m_access->filePath()));
            } else if (m_disc && (m_disc->availableContent() & Solid::OpticalDisc::Audio)!=0) {
                QString device = d.as<Solid::Block>()->device();
                return QUrl(QString("audiocd:/?device=%1").arg(device));
            }
    }

The crash happens, because d.as<Solid::Block> returns 0, in other words, Audio CDs are no longer treated as block devices.

Failure of said cast can be easily detected, but the question is rather, if it's not a Solid bug, how the code needs to be modified to correctly get the audiocd:/ URL for the block device."

While I did not yet figure out, how I can get the block device URL for a disc in case block is 0, I propose this temporary fix. It should fix the crash, but could fail to correctly invoke the audiocd:/ kio with multiple disc drives.


This addresses bug 314544.
    http://bugs.kde.org/show_bug.cgi?id=314544


Diffs
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  kfile/kfileplacesitem.cpp 5a12486 

Diff: http://git.reviewboard.kde.org/r/111626/diff/


Testing
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I could not test, my system has no disc drives.


Thanks,

Christoph Feck

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