On Thu, Mar 23, 2017 at 01:01:52PM +0100, Marek Szyprowski wrote: > Driver should provide its own struct device for all DMA-mapping calls instead > of extracting device pointer from DMA engine channel. For the purpose of cc-stable it might be useful to answer here what visible error is fixed (or why driver should not use DMA's device) but on the other hand this is actually obvious... Anyway: Reviewed-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx> Best regards, Krzysztof > Reported-by: Seung-Woo Kim <sw0312.kim@xxxxxxxxxxx> > Fixes: 62c37eedb74c8 ("serial: samsung: add dma reqest/release functions") > CC: stable@xxxxxxxxxxxxxxx # v4.0+ > Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> > Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@xxxxxxxxxxx> > --- > v2: > - fixed commit id in 'fixes' tag, added 'reviewed-by' tag > --- > drivers/tty/serial/samsung.c | 9 ++++----- > 1 file changed, 4 insertions(+), 5 deletions(-)