meta: Plug memory leak

It looks like this has existed since
commit f5a477ab76b6e0b268387699cd2253a43db0dfae
Author: Ian Romanick <ian.d.romanick@intel.com>
Date:   Mon Dec 16 11:54:08 2013 -0800

    meta: Refactor shader generation code out of mipmap generation path

Valgrind was complaining on fbo-generatemipmap-formats

v2: Instead, do the allocation after the early return block (v2)

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
1 file changed