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(parent: f5835c1) | patch
serial: sh-sci: Handle DMA init failures inside sci_request_dma()
authorGeert Uytterhoeven <geert+renesas@glider.be>
Fri, 21 Aug 2015 18:02:39 +0000 (20:02 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 4 Oct 2015 16:33:48 +0000 (17:33 +0100)
commitb9258020264dfacb8695df181d766fa9a079ab15
tree3e9160927de0116738f7d787100ce7d60d6c873btree | snapshot (tar.gz zip)
parentf5835c1d0e30c7d0a48aa36e3a353c7d54ace470commit | diff
serial: sh-sci: Handle DMA init failures inside sci_request_dma()

Let sci_request_dma() handle failures to initialize DMA itself.
This way sci_tx_dma_release() and sci_rx_dma_release() don't have to
consider partial initialization, and thus don't need to reset DMA
addresses to DMA_ERROR_CODE, which is not 100% portable access
architectures.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/serial/sh-sci.c diff | blob | blame | history