[PATCH 15/16] i2c-designware: i2c_dw_xfer_msg: Mark as completed on an error

[Shinya Kuribayashi <shinya.kuribayashi@necel.com>]

As wait_for_completion_interruptible_timeout() will be invoked after
the first call to i2c_dw_xfer_msg() is made whether or not an error is
detected in it, we need to mark ->cmd_complete as completed to avoid a
needless HZ timeout.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
---

Or we could change the i2c_dw_xfer_msg() prototype from "void" to
"int".  Which is preffered?

drivers/i2c/busses/i2c-designware.c |    1 +
1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/i2c/busses/i2c-designware.c 
b/drivers/i2c/busses/i2c-designware.c
index f7ea032..6f85e28 100644
--- a/drivers/i2c/busses/i2c-designware.c
+++ b/drivers/i2c/busses/i2c-designware.c
@@ -376,6 +376,7 @@ i2c_dw_xfer_msg(struct dw_i2c_dev *dev)
                        dev_err(dev->dev,
                                "%s: invalid message length\n", __func__);
                        dev->msg_err = -EINVAL;
+                       complete(&dev->cmd_complete);
                        return;
                }

--
1.6.5