spi: rockchip: check return value of dmaengine_prep_slave_sg

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We should check return value of dmaengine_prep_slave_sg, otherwise
we take risk of null pointer.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

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Shawn Lin 2016-03-09 16:11:15 +08:00 • committed by Mark Brown

parent 0277e01aeb

commit ea98491133

1 changed files with 12 additions and 3 deletions

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drivers/spi/spi-rockchip.c

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