From: "Németh Márton" <nm127@freemail.hu>
To: Jean-Francois Moine <moinejf@free.fr>,
Thomas Kaiser <thomas@kaiser-linux.li>
Cc: V4L Mailing List <linux-media@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH 3/3] pac7311: remove magic value for USB_BUF_SZ
Date: Sat, 03 Oct 2009 09:35:54 +0200 [thread overview]
Message-ID: <4AC6FEDA.30804@freemail.hu> (raw)
From: Márton Németh <nm127@freemail.hu>
The length check in reg_w_var() function is because the buffer contents
is copied to gspca_dev->usb_buf which has the size of USB_BUF_SZ bytes as
defined in drivers/media/video/gspca/gspca.h. Replace the number with
symbol for better readability and maintainability.
The change was tested with Labtec Webcam 2200.
Signed-off-by: Márton Németh <nm127@freemail.hu>
---
diff -upr c/drivers/media/video/gspca/pac7311.c d/drivers/media/video/gspca/pac7311.c
--- c/drivers/media/video/gspca/pac7311.c 2009-10-03 08:47:30.000000000 +0200
+++ d/drivers/media/video/gspca/pac7311.c 2009-10-03 09:02:31.000000000 +0200
@@ -474,7 +474,7 @@ static void reg_w_var(struct gspca_dev *
reg_w_page(gspca_dev, page3_7302, sizeof page3_7302);
break;
default:
- if (len > 64) {
+ if (len > USB_BUF_SZ) {
PDEBUG(D_ERR|D_STREAM,
"Incorrect variable sequence");
return;
reply other threads:[~2009-10-03 7:35 UTC|newest]
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