Staging: rtl8712: remove unnecessary 'out of memory' message

This patch fixes checkpatch.pl warning in file usb_ops_linux.c
WARNING : possible unecessary 'out of memory' message
Signed-off-by: Tapasweni Pathak <tapaswenipathak@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8712/usb_ops_linux.c

@@ -496,11 +496,8 @@ int r8712_usbctrl_vendorreq(struct intf_priv *pintfpriv, u8 request, u16 value,
 	u8 *palloc_buf, *pIo_buf;
 
 	palloc_buf = kmalloc((u32)len + 16, GFP_ATOMIC);
-	if (palloc_buf == NULL) {
-		dev_err(&udev->dev, "%s: Can't alloc memory for vendor request\n",
-			__func__);
+	if (palloc_buf == NULL)
 		return -ENOMEM;
-	}
 	pIo_buf = palloc_buf + 16 - ((addr_t)(palloc_buf) & 0x0f);
 	if (requesttype == 0x01) {
 		pipe = usb_rcvctrlpipe(udev, 0); /* read_in */