Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

USB: visor: fix DMA buffers on stack

Browse source 
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Johan Hovold 2009-12-28 23:01:57 +01:00 committed by Greg Kroah-Hartman
parent d2126326bd
commit 401711cb57
1 changed files with 18 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

26
drivers/usb/serial/visor.c
View file

@ -807,10 +807,14 @@ static int clie_3_5_startup(struct usb_serial *serial)
{
struct device *dev = &serial->dev->dev;
int result;
u8 data;
u8 *data;
dbg("%s", __func__);
data = kmalloc(1, GFP_KERNEL);
if (!data)
return -ENOMEM;
/*
* Note that PEG-300 series devices expect the following two calls.
*/
@ -818,36 +822,42 @@ static int clie_3_5_startup(struct usb_serial *serial)
/* get the config number */
result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
USB_REQ_GET_CONFIGURATION, USB_DIR_IN,
0, 0, &data, 1, 3000);
0, 0, data, 1, 3000);
if (result < 0) {
dev_err(dev, "%s: get config number failed: %d\n",
__func__, result);
return result;
goto out;
}
if (result != 1) {
dev_err(dev, "%s: get config number bad return length: %d\n",
__func__, result);
return -EIO;
result = -EIO;
goto out;
}
/* get the interface number */
result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
USB_REQ_GET_INTERFACE,
USB_DIR_IN | USB_RECIP_INTERFACE,
0, 0, &data, 1, 3000);
0, 0, data, 1, 3000);
if (result < 0) {
dev_err(dev, "%s: get interface number failed: %d\n",
__func__, result);
return result;
goto out;
}
if (result != 1) {
dev_err(dev,
"%s: get interface number bad return length: %d\n",
__func__, result);
return -EIO;
result = -EIO;
goto out;
}
return generic_startup(serial);
result = generic_startup(serial);
out:
kfree(data);
return result;
}
static int treo_attach(struct usb_serial *serial)