spi : spi-topcliff-pch: Fix to handle empty DMA buffers

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pch_alloc_dma_buf allocated tx, rx DMA buffers which can fail. Further,
these buffers are used without a check. The patch checks for these
failures and sends the error upstream.

Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Signed-off-by: Mark Brown <broonie@kernel.org>

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Aditya Pakki 2019-03-13 11:55:41 -05:00 • committed by Mark Brown

parent 5356c2c70e

commit f37d8e67f3

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1 changed files with 13 additions and 2 deletions

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drivers/spi/spi-topcliff-pch.c

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