watchdog: pcwd_usb: Use allocated buffer for usb_control_msg
authorGuenter Roeck <linux@roeck-us.net>
Mon, 14 Oct 2013 16:29:34 +0000 (09:29 -0700)
committerWim Van Sebroeck <wim@iguana.be>
Sun, 17 Nov 2013 18:37:48 +0000 (19:37 +0100)
commit5412df0bda90a2bdcef2771849ad5472b9ef8100
tree6f6d0bd0b63757971222628dd10bd23307b54953
parentb1f9cd3225ae2e8626fe7503ae7be92240873049
watchdog: pcwd_usb: Use allocated buffer for usb_control_msg

usb_control_msg() must use a dma-capable buffer.

This fixes the following error reported by smatch:

drivers/watchdog/pcwd_usb.c:257 usb_pcwd_send_command() error: doing dma on the
stack (buf)

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
drivers/watchdog/pcwd_usb.c