dmaengine: sh: rcar-dmac: Check for error num after dma_set_max_seg_size
authorJiasheng Jiang <jiasheng@iscas.ac.cn>
Tue, 11 Jan 2022 01:12:39 +0000 (09:12 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 23 Feb 2022 11:03:21 +0000 (12:03 +0100)
commit6b186a23af0d502074af989e56879223cc14dbd7
treebc790a9e453ea6f2be0fb0908b10e304156851d3
parent4f3a0737992cd0a39f2fbc5492a4f786551ecbd5
dmaengine: sh: rcar-dmac: Check for error num after dma_set_max_seg_size

commit da2ad87fba0891576aadda9161b8505fde81a84d upstream.

As the possible failure of the dma_set_max_seg_size(), it should be
better to check the return value of the dma_set_max_seg_size().

Fixes: 97d49c59e219 ("dmaengine: rcar-dmac: set scatter/gather max segment size")
Reported-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20220111011239.452837-1-jiasheng@iscas.ac.cn
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/dma/sh/rcar-dmac.c