i2c: pmcmsp: return message count on master_xfer success

[ Upstream commit de9a8634f1cb4560a35696d472cc7f1383d9b866 ]

Returning zero is wrong in this case.

Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Fixes: 1b144df1d7d6 ("i2c: New PMC MSP71xx TWI bus driver")
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/i2c/busses/i2c-pmcmsp.c b/drivers/i2c/busses/i2c-pmcmsp.c
index 2aa0e83174c52895a0fb1416e8a17a00d31b24c6..ec27e27e8d068fae16ea8cf80bb1e94a18142286 100644 (file)
--- a/drivers/i2c/busses/i2c-pmcmsp.c
+++ b/drivers/i2c/busses/i2c-pmcmsp.c
@@ -567,7 +567,7 @@ static int pmcmsptwi_master_xfer(struct i2c_adapter *adap,
                return -1;
        }
 
-       return 0;
+       return num;
 }
 
 static u32 pmcmsptwi_i2c_func(struct i2c_adapter *adapter)