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
Add a the new qemu_create_displaysurface_pixman function, to create a DisplaySurface backed by an existing pixman image. In that case there is no need to create a new pixman image pointing to the same backing storage. We can just use the existing image directly. This does not only simplify things a bit, but most importantly it gets the reference counting right, so the backing storage for the pixman image wouldn't be released underneath us. Use new function in virtio-gpu, where using it actually fixes use-after-free crashes. Cc: qemu-stable@nongnu.org Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Message-id: 1459499240-742-1-git-send-email-kraxel@redhat.com