Yen Lin a02cb09bb7 stm32: spi: read spi->dr into a dummy variable ...

(cherry-pick back to ToT)

In setup_for_transaction(), read spi->dr into a dummy variable instead
of into in_msg[0]. Since in_msg[0] is an alias for a command's port number,
this will prevent a command's port number from being over-written if spi
transaction is terminated early while a command is still in progress.

BUG=chrome-os-partner:28979
BRANCH=nyan
TEST=passed factory_test.reboot2 test for >1000 cycles

Signed-off-by: Yen Lin <yelin@nvidia.com>
Reviewed-on: https://chromium-review.googlesource.com/204355
Reviewed-by: Yung-chieh Lo <yjlou@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>

(cherry picked from commit 2b043665850f7c74cd6a4a7f24d7a18b01b378ac)

Change-Id: Ia412fadcd7621f45bbb096771615ce75fe445592
Oiginal-Change-Id: I308ea954d6242fce5b3a70a14660767ac88d8242
Reviewed-on: https://chromium-review.googlesource.com/206920
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Queue: Yung-chieh Lo <yjlou@chromium.org>
Tested-by: Yung-chieh Lo <yjlou@chromium.org>

2014-07-08 02:13:25 +00:00

..

host

watchdog: Give more leeway to the independent watchdog

2014-06-23 21:48:42 +00:00

it83xx

watchdog: Give more leeway to the independent watchdog

2014-06-23 21:48:42 +00:00

lm4

watchdog: Give more leeway to the independent watchdog

2014-06-23 21:48:42 +00:00

mec1322

mec1322: Keep CPU at high clock frequency to speed up hibernate

2014-07-03 02:52:30 +00:00

stm32

stm32: spi: read spi->dr into a dummy variable

2014-07-08 02:13:25 +00:00