linux-kernel

Open Source and information security mailing list archives

Message-ID: <8056.1159189100@lwn.net>
Date:	Mon, 25 Sep 2006 06:58:20 -0600
From:	corbet@....net (Jonathan Corbet)
To:	linux-kernel@...r.kernel.org
cc:	akpm@...l.org, mchehab@...radead.org, stable@...nel.org,
	s.hauer@...gutronix.de
Subject: [PATCH] v4l2 VIDIOC_DQBUF typo in 2.6.18


It seems that, in the rush to create the new V4L2 ioctl() API, the
VIDIOC_DQBUF code got cut-and-pasted in without being fixed up.  I went
and made a patch, only to discover that Sascha Hauer beat me to it.
That patch doesn't seem to have been picked up yet, however.  Since it's
important (streaming I/O will not work without it), here's an attempt to
spread it a bit more widely.

jon


From: Sascha Hauer <s.hauer@...gutronix.de>
Subject: [PATCH] copy-paste bug in videodev.c
Date: Mon, 11 Sep 2006 10:50:55 +0200
To: video4linux-list@...hat.com

This patch fixes a copy-paste bug in videodev.c where the vidioc_qbuf()
function gets called for the dqbuf ioctl.

Signed-off-by: Sascha Hauer <s.hauer@...gutronix.de>

diff --git a/drivers/media/video/videodev.c
b/drivers/media/video/videodev.c
index 88bf2af..8abee33 100644
--- a/drivers/media/video/videodev.c
+++ b/drivers/media/video/videodev.c
@@ -739,13 +739,13 @@ static int __video_do_ioctl(struct inode
 	case VIDIOC_DQBUF:
 	{
 		struct v4l2_buffer *p=arg;
-		if (!vfd->vidioc_qbuf)
+		if (!vfd->vidioc_dqbuf)
 			break;
 		ret = check_fmt (vfd, p->type);
 		if (ret)
 			break;
 
-		ret=vfd->vidioc_qbuf(file, fh, p);
+		ret=vfd->vidioc_dqbuf(file, fh, p);
 		if (!ret)
 			dbgbuf(cmd,vfd,p);
 		break;


-- 
 Dipl.-Ing. Sascha Hauer | http://www.pengutronix.de
  Pengutronix - Linux Solutions for Science and Industry
    Handelsregister: Amtsgericht Hildesheim, HRA 2686
      Hannoversche Str. 2, 31134 Hildesheim, Germany
    Phone: +49-5121-206917-0 |  Fax: +49-5121-206917-9

--
video4linux-list mailing list
Unsubscribe mailto:video4linux-list-request@...hat.com?subject=unsubscribe
https://www.redhat.com/mailman/listinfo/video4linux-list


--=-=-=--
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/


lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives