[PATCH 3.18 33/85] i2c: viperboard: return message count on master_xfer success

[Greg Kroah-Hartman]

3.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Peter Rosin <p...@axentia.se>

[ Upstream commit 35cd67a0caf767aba472452865dcb4471fcce2b1 ]

Returning zero is wrong in this case.

Signed-off-by: Peter Rosin <p...@axentia.se>
Signed-off-by: Wolfram Sang <w...@the-dreams.de>
Fixes: 174a13aa8669 ("i2c: Add viperboard i2c master driver")
Signed-off-by: Sasha Levin <alexander.le...@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 drivers/i2c/busses/i2c-viperboard.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/i2c/busses/i2c-viperboard.c
+++ b/drivers/i2c/busses/i2c-viperboard.c
@@ -341,7 +341,7 @@ static int vprbrd_i2c_xfer(struct i2c_ad
                }
                mutex_unlock(&vb->lock);
        }
-       return 0;
+       return num;
 error:
        mutex_unlock(&vb->lock);
        return error;