Fix defects reported by Coverity Scan.
Resource leak (RESOURCE_LEAK)
leaked_handle: Handle variable fd going out of scope leaks the handle.
Argument cannot be negative (NEGATIVE_RETURNS)
negative_returns: fd is passed to a parameter that cannot be negative.
Fixes: 1ea4ef0d3b ("freedreno: slurp in decode tools")
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6642>