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spi: sprd: Release DMA channel also on probe deferral
commit 687a2e7 upstream. If dma_request_chan() for TX channel fails with EPROBE_DEFER, the RX channel would not be released and on next re-probe it would be requested second time. Fixes: 386119b ("spi: sprd: spi: sprd: Add DMA mode support") Cc: <stable@vger.kernel.org> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Chunyan Zhang <zhang.lyra@gmail.com> Link: https://lore.kernel.org/r/20200901152713.18629-1-krzk@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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