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449b317cd7
If there's nothing to send, skip over a bunch of code to make a list
that won't be used, and hopefully make the code path clearer to both
humans and static analyzers, who raise errors as seen in #1817 of
dereferencing NULL pointers when count == 0.
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/2072>
(cherry picked from commit d34243606c)