spi/bfin_spi: fix resources leakage
Re-order setup() a bit so we don't leak memory/dma/gpio resources upon errors. Also make sure we don't call kfree() twice on the same object. Signed-off-by: NDaniel Mack <daniel@caiaq.de> Signed-off-by: NBryan Wu <cooloney@kernel.org> Signed-off-by: NYi Li <yi.li@analog.com> Signed-off-by: NMike Frysinger <vapier@gentoo.org>
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