spi: davinci: handle DMA completion errors correctly

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Do not simply clean the DMA channel on a DMA completion
error. Instead, use wcount and rcount members of davinci_spi
to detecion non-completion of DMA and signal EIO to the
application.

Signed-off-by: Brian Niebuhr <bniebuhr@efjohnson.com>
Tested-By: Michael Williamson <michael.williamson@criticallink.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>

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Brian Niebuhr 2010-10-05 11:38:41 +05:30 • committed by Sekhar Nori

parent 523c37e700

commit 9b189fd758

1 changed files with 36 additions and 27 deletions

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drivers/spi/davinci_spi.c

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