Fix null pointer dereference in xf86_reload_cursors().
Upon resume, X may try to dereference a null pointer, which has been reported in Debian bug #507916 (http://bugs.debian.org/507916). Jim Paris came up with a patch which solves the problem for him. Here's a (hopefully) fixed version of his patch (without the typo). Cc: Jim Paris <jim@jtan.com> Signed-off-by: Cyril Brulebois <kibi@debian.org> Reviewed-By: Matthias Hopf <mhopf@suse.de> Signed-off-by: Keith Packard <keithp@keithp.com>
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@ -609,7 +609,7 @@ xf86_reload_cursors (ScreenPtr screen)
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cursor_screen_priv = dixLookupPrivate(&screen->devPrivates,
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xf86CursorScreenKey);
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/* return if HW cursor is inactive, to avoid displaying two cursors */
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if (!cursor_screen_priv->isUp)
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if (!cursor_screen_priv || !cursor_screen_priv->isUp)
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return;
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scrn = xf86Screens[screen->myNum];
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