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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Peter Rosin <peda@axentia.se>,
        Wolfram Sang <wsa@the-dreams.de>,
        Sasha Levin <alexander.levin@microsoft.com>
Subject: [PATCH 3.18 33/85] i2c: viperboard: return message count on master_xfer success
Date:   Sun,  1 Jul 2018 18:01:51 +0200
Message-Id: <20180701153123.684245270@linuxfoundation.org>
In-Reply-To: <20180701153122.365061142@linuxfoundation.org>
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3.18-stable review patch.  If anyone has any objections, please let me know.

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

From: Peter Rosin <peda@axentia.se>

[ Upstream commit 35cd67a0caf767aba472452865dcb4471fcce2b1 ]

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: 174a13aa8669 ("i2c: Add viperboard i2c master driver")
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@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;