@@ -48,18 +48,8 @@ static int emi62_writememory(struct usb_device *dev, int address,
const unsigned char *data, int length,
__u8 request)
{
- int result;
- unsigned char *buffer = kmemdup(data, length, GFP_KERNEL);
-
- if (!buffer) {
- dev_err(&dev->dev, "kmalloc(%d) failed.\n", length);
- return -ENOMEM;
- }
- /* Note: usb_control_msg returns negative value on error or length of the
- * data that was written! */
- result = usb_control_msg (dev, usb_sndctrlpipe(dev, 0), request, 0x40, address, 0, buffer, length, 300);
- kfree (buffer);
- return result;
+ return usb_control_msg_send(dev, 0, request, 0x40, address,
+ 0, data, length, 300, GFP_KERNEL);
}
/* thanks to drivers/usb/serial/keyspan_pda.c code */
The newer usb_control_msg_{send|recv}() API are an improvement on the existing usb_control_msg() as it ensures that a short read/write is treated as an error, data can be used off the stack, and raw usb pipes need not be created in the calling functions. For this reason, the instance of usb_control_msg() has been replaced with usb_control_msg_send() appropriately. Signed-off-by: Anant Thazhemadam <anant.thazhemadam@gmail.com> --- drivers/usb/misc/emi62.c | 14 ++------------ 1 file changed, 2 insertions(+), 12 deletions(-)