linux-kernel - [PATCH 4.2 090/120] HID: cp2112: fix I2C_SMBUS

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Date:	Sat, 19 Sep 2015 10:28:50 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Ellen Wang <ellen@...ulusnetworks.com>,
	Wolfram Sang <wsa@...-dreams.de>,
	Antonio Borneo <borneo.antonio@...il.com>,
	Jiri Kosina <jkosina@...e.com>
Subject: [PATCH 4.2 090/120] HID: cp2112: fix I2C_SMBUS_BYTE write

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

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

From: Ellen Wang <ellen@...ulusnetworks.com>

commit 6d00d153f00097d259f86304e11858a50a1b8ad1 upstream.

When doing an I2C_SMBUS_BYTE write (one byte write, no address),
the data to be written is in "command" not "data->byte".

Signed-off-by: Ellen Wang <ellen@...ulusnetworks.com>
Acked-by: Wolfram Sang <wsa@...-dreams.de>
Reviewed-by: Antonio Borneo <borneo.antonio@...il.com>
Signed-off-by: Jiri Kosina <jkosina@...e.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/hid/hid-cp2112.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/hid/hid-cp2112.c
+++ b/drivers/hid/hid-cp2112.c
@@ -554,7 +554,7 @@ static int cp2112_xfer(struct i2c_adapte
 		if (I2C_SMBUS_READ == read_write)
 			count = cp2112_read_req(buf, addr, read_length);
 		else
-			count = cp2112_write_req(buf, addr, data->byte, NULL,
+			count = cp2112_write_req(buf, addr, command, NULL,
 						 0);
 		break;
 	case I2C_SMBUS_BYTE_DATA:


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