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(parent: fba67e8) | patch
tty: serial: imx: use the sg count from dma_map_sg
authorPeng Fan <peng.fan@nxp.com>
Thu, 7 Nov 2019 06:42:53 +0000 (06:42 +0000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 13 Nov 2019 11:01:15 +0000 (19:01 +0800)
commit596fd8dffb745afcebc0ec6968e17fe29f02044c
tree03dbb1e89199280cbb866da6661228c8b998dafftree | snapshot
parentfba67e8f897870403e1a4f5fe3835c870cd589e0commit | diff
tty: serial: imx: use the sg count from dma_map_sg

The dmaengine_prep_slave_sg needs to use sg count returned
by dma_map_sg, not use sport->dma_tx_nents, because the return
value of dma_map_sg is not always same with "nents".

Fixes: b4cdc8f61beb ("serial: imx: add DMA support for imx6q")
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/1573108875-26530-1-git-send-email-peng.fan@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/serial/imx.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git