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Code Issues Releases Wiki Activity

USB: serial: cp210x: Fixed usb_control_msg timeout values 

Fixed too small hardcoded timeout values for usb_control_msg
in driver for SiliconLabs cp210x-based usb-to-serial adapters.
Replaced with USB_CTRL_GET_TIMEOUT/USB_CTRL_SET_TIMEOUT.

Signed-off-by: Yuri Matylitski <ym@tekinsoft.com>
Acked-by: Kirill A. Shutemov <kirill@shutemov.name>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Yuri Matylitski 2012-04-20 12:38:32 +03:00 committed by Greg Kroah-Hartman
parent 8034761c21
commit 2d5733fcd3
1 changed files with 6 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/usb/serial/cp210x.c
View File

@ -287,7 +287,8 @@ static int cp210x_get_config(struct usb_serial_port *port, u8 request,
/* Issue the request, attempting to read 'size' bytes */
result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
request, REQTYPE_DEVICE_TO_HOST, 0x0000,
port_priv->bInterfaceNumber, buf, size, 300);
port_priv->bInterfaceNumber, buf, size,
USB_CTRL_GET_TIMEOUT);
/* Convert data into an array of integers */
for (i = 0; i < length; i++)
@ -340,12 +341,14 @@ static int cp210x_set_config(struct usb_serial_port *port, u8 request,
result = usb_control_msg(serial->dev,
usb_sndctrlpipe(serial->dev, 0),
request, REQTYPE_HOST_TO_DEVICE, 0x0000,
port_priv->bInterfaceNumber, buf, size, 300);
port_priv->bInterfaceNumber, buf, size,
USB_CTRL_SET_TIMEOUT);
} else {
result = usb_control_msg(serial->dev,
usb_sndctrlpipe(serial->dev, 0),
request, REQTYPE_HOST_TO_DEVICE, data[0],
port_priv->bInterfaceNumber, NULL, 0, 300);
port_priv->bInterfaceNumber, NULL, 0,
USB_CTRL_SET_TIMEOUT);
}
kfree(buf);