tree b86fa5273824030367cb2d45af845b45d2b02982
parent b01543dfe67bb1d191998e90d20534dc354de059
author Wolfram Sang <w.sang@pengutronix.de> 1326453266 +0100
committer Wolfram Sang <w.sang@pengutronix.de> 1330118907 +0100

i2c: mxs: only flag completion when queue is completely done

The hardware generates an interrupt for every completed command in the
queue while the code assumed that it will only generate one interrupt
when the queue is empty. So, explicitly check if the queue is really
empty. This patch fixed problems which occurred due to high traffic on
the bus. While we are here, move the completion-initialization after the
parameter error checking.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Lothar Waßmann <LW@KARO-electronics.de>
Cc: stable@kernel.org