staging: rtl8188eu: assigning a value to the variable is replaced by the increment

It is made to the initial value could be placed in 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

@@ -65,10 +65,12 @@ static void _rtl88e_fw_block_write(struct adapter *adapt,
 	blk_cnt = size / blk_sz;
 	remain = size % blk_sz;
 
+	offset = 0;
+
 	for (i = 0; i < blk_cnt; i++) {
-		offset = i * blk_sz;
 		usb_write32(adapt, (FW_8192C_START_ADDRESS + offset),
 				pu4BytePtr[i]);
+		offset += blk_sz;
 	}
 
 	if (remain) {