serial: imx: disable TDMAEN in imx_flush_buffer()

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Terminating the DMA, make sure the interrupt is disabled, too.
This fixes random kernel Oops due to dma_tx_call() called for
invalid transmissions.

If we disable the TDMAEN, make sure it's enabled again if a TX
DMA is started.

Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Dirk Behme 2014-12-09 18:11:31 +09:00 • committed by Greg Kroah-Hartman

parent 0bbc9b81c1

commit a2c718ce6a

1 changed files with 15 additions and 0 deletions

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drivers/tty/serial/imx.c

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