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2d21543efe
Because of the possible failure of the dma_supported(), the dma_set_mask_and_coherent() may return error num. Therefore, it should be better to check it and return the error if fails. Fixes: dc312349e875 ("dmaengine: rcar-dmac: Widen DMA mask to 40 bits") Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20220106030939.2644320-1-jiasheng@iscas.ac.cn Signed-off-by: Vinod Koul <vkoul@kernel.org>