staging: rtl8188eu: offset variable replaced by its value

It is now possible to get rid of re-initializing the offset variable.
Signed-off-by: Ivan Safonov <insafonov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/hal/fw.c

@@ -74,7 +74,7 @@ static void _rtl88e_fw_block_write(struct adapter *adapt,
 
 	if (remain) {
 		offset = blk_cnt * blk_sz;
-		buf_ptr += offset;
+		buf_ptr += blk_cnt * blk_sz;
 		for (i = 0; i < remain; i++) {
 			usb_write8(adapt, (FW_8192C_START_ADDRESS +
 						 offset + i), buf_ptr[i]);