From: Michael Brunner <mibru@gmx.de>
To: craig@microtron.org.uk, gregkh@suse.de
Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] USB-SERIAL cp210x: Remove double usb_control_msg from cp210x_set_config
Date: Wed, 10 Mar 2010 23:26:37 +0100 [thread overview]
Message-ID: <20100310232637.7e14e773@mail.gmx.de> (raw)
This patch removes a double usb_control_msg that sets the cp210x
configuration registers a second time when calling cp210x_set_config.
For data sizes >2 the second write gets corrupted.
The patch has been created against 2.6.34-rc1, but all cp210x driver
revisions are affected.
Signed-off-by: Michael Brunner <mibru@gmx.de>
---
drivers/usb/serial/cp210x.c | 5 -----
1 files changed, 0 insertions(+), 5 deletions(-)
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index 507382b..ec9b044 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -313,11 +313,6 @@ static int cp210x_set_config(struct usb_serial_port *port,
return -EPROTO;
}
- /* Single data value */
- result = usb_control_msg(serial->dev,
- usb_sndctrlpipe(serial->dev, 0),
- request, REQTYPE_HOST_TO_DEVICE, data[0],
- 0, NULL, 0, 300);
return 0;
}
reply other threads:[~2010-03-10 22:26 UTC|newest]
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