Review Request 122909: Fix segfault with missing screens

[Jan Kundrát]

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https://git.reviewboard.kde.org/r/122909/
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(Updated March 12, 2015, 1:24 p.m.)


Status
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This change has been marked as submitted.


Review request for Plasma.


Changes
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Submitted with commit aba0ad12685e2946a42d6a60d8cca58aa24b6d2a by Jan Kundrát to branch master.


Repository: plasma-workspace


Description
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Fix segfault with missing screens

This is to keep up with the Qt 5.5 changes with null QScreen. BT:

 #0  XInternAtom (dpy=0x0, name=0x7f1195725664 "_KDE_NET_WM_SHADOW", onlyIfExists=0)
     at /var/tmp/portage/x11-libs/libX11-1.6.2/work/libX11-1.6.2/src/IntAtom.c:174
 #1  0x00007f11956e438c in PanelShadows::Private::clearShadow (this=<optimized out>, window=0x7f119958ff90)
     at /var/tmp/portage/kde-plasma/plasma-workspace-5.2.1/work/plasma-workspace-5.2.1/shell/panelshadows.cpp:494
 #2  0x00007f11956e7139 in PanelShadows::removeWindow (this=0x7f119593b060 <(anonymous namespace)::Q_QGS_privateDialogShadowsSelf::innerFunction()::holder>, window=window at entry=0x7f119958ff90)
     at /var/tmp/portage/kde-plasma/plasma-workspace-5.2.1/work/plasma-workspace-5.2.1/shell/panelshadows.cpp:142
 #3  0x00007f11956dd8f5 in PanelView::~PanelView (this=0x7f119958ff90, __in_chrg=<optimized out>)
     at /var/tmp/portage/kde-plasma/plasma-workspace-5.2.1/work/plasma-workspace-5.2.1/shell/panelview.cpp:124
 #4  0x00007f11956dd9af in PanelView::~PanelView (this=0x7f119958ff90, __in_chrg=<optimized out>)
     at /var/tmp/portage/kde-plasma/plasma-workspace-5.2.1/work/plasma-workspace-5.2.1/shell/panelview.cpp:125
 #5  0x00007f11956effa8 in ShellCorona::removeView (this=0x7f1196c19b40, idx=0) at /var/tmp/portage/kde-plasma/plasma-workspace-5.2.1/work/plasma-workspace-5.2.1/shell/shellcorona.cpp:710
 #6  0x00007f11956f0038 in ShellCorona::remove (this=this at entry=0x7f1196c19b40, desktopView=<optimized out>)
     at /var/tmp/portage/kde-plasma/plasma-workspace-5.2.1/work/plasma-workspace-5.2.1/shell/shellcorona.cpp:662
 #7  0x00007f11956f009f in ShellCorona::screenRemoved (this=0x7f1196c19b40, screen=<optimized out>)
     at /var/tmp/portage/kde-plasma/plasma-workspace-5.2.1/work/plasma-workspace-5.2.1/shell/shellcorona.cpp:743


Diffs
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  shell/panelshadows.cpp c97564a2417a66e17a1a02237155f19addf2b9c7 

Diff: https://git.reviewboard.kde.org/r/122909/diff/


Testing
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Thanks,

Jan Kundrát

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