spi/imx: simplify error handling to free gpios
Simplify the error handling by moving the code to free gpios in one place. Signed-off-by: NAxel Lin <axel.lin@gmail.com> Acked-by: NShawn Guo <shawn.guo@linaro.org> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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