tag 4a30de77bd8cd3861a53564c37b92a3689196ec0
tagger Simon Horman <horms@verge.net.au> Mon Sep 17 16:05:52 2018 +0200
object 720043a4efbb3356db116d084c7b877ad41ee51a

Second Round of LTSI-v4.14 Backports of I2C R-Car Fixes

Base:
* v4.14.61
* Backports of components for Renesas SoCs to v4.18
* First round of Backports of I2C R-Car Fixes

Backport of post-v4.18 fix for i2c-shmobile and I2C core
The focus of these fixes is to make DMA buffer handling safe

commit 720043a4efbb3356db116d084c7b877ad41ee51a
author Wolfram Sang <wsa+renesas@sang-engineering.com> Fri Aug 24 16:52:46 2018 +0200
committer Simon Horman <horms+renesas@verge.net.au> Mon Sep 17 15:54:30 2018 +0200
tree ab5d0be414fdddc7d4bd657c7c547ddad30e9887
parent c496b99c8a87667d08d6e0f4ad8e11ae8c316930

i2c: sh_mobile: fix leak when using DMA bounce buffer

We only freed the bounce buffer after successful DMA, missing the cases
where DMA setup may have gone wrong. Use a better location which always
gets called after each message and use 'stop_after_dma' as a flag for a
successful transfer.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
(cherry picked from commit cebc07d84ad71bc58d6f59b770e4347da48a5a2b)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>