net: dsa: felix: Fix memory leak in felix_setup_mmio_filtering
Avoid a memory leak if there is not a CPU port defined. Fixes: 8d5f7954 ("net: dsa: felix: break at first CPU port during init and teardown") Addresses-Coverity-ID: 1492897 ("Resource leak") Addresses-Coverity-ID: 1492899 ("Resource leak") Signed-off-by: José Expósito <jose.exposito89@gmail.com> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com> Link: https://lore.kernel.org/r/20211209110538.11585-1-jose.exposito89@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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