present: Only call restore_screen_pixmap once from set_abort_flip
present_restore_screen_pixmap's work doesn't need to be done several times for the same pending flip. Fixes a crash if the X server quits while a flip is pending, in which case present_set_abort_flip may be called several times, including when screen->root is already cleared to NULL. Reviewed-by: Hans de Goede <hdegoede@redhat.com>
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@ -455,9 +455,10 @@ present_set_abort_flip(ScreenPtr screen)
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{
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present_screen_priv_ptr screen_priv = present_screen_priv(screen);
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if (!screen_priv->flip_pending->abort_flip) {
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present_restore_screen_pixmap(screen);
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screen_priv->flip_pending->abort_flip = TRUE;
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}
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}
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static void
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