linux-kernel - [PATCH 3.18 31/85] i2c: pmcmsp: return message count on master

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Message-Id: <20180701153123.604621265@linuxfoundation.org>
Date:   Sun,  1 Jul 2018 18:01:49 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Peter Rosin <peda@...ntia.se>,
        Wolfram Sang <wsa@...-dreams.de>,
        Sasha Levin <alexander.levin@...rosoft.com>
Subject: [PATCH 3.18 31/85] i2c: pmcmsp: return message count on master_xfer success

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

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

From: Peter Rosin <peda@...ntia.se>

[ Upstream commit de9a8634f1cb4560a35696d472cc7f1383d9b866 ]

Returning zero is wrong in this case.

Signed-off-by: Peter Rosin <peda@...ntia.se>
Signed-off-by: Wolfram Sang <wsa@...-dreams.de>
Fixes: 1b144df1d7d6 ("i2c: New PMC MSP71xx TWI bus driver")
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/i2c/busses/i2c-pmcmsp.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/i2c/busses/i2c-pmcmsp.c
+++ b/drivers/i2c/busses/i2c-pmcmsp.c
@@ -595,7 +595,7 @@ static int pmcmsptwi_master_xfer(struct
 		return -1;
 	}
 
-	return 0;
+	return num;
 }
 
 static u32 pmcmsptwi_i2c_func(struct i2c_adapter *adapter)