From: Ingo Molnar <mingo@elte.hu>
To: Gregor Jasny <jasny@vidsoft.de>
Cc: linux-kernel@vger.kernel.org,
video4linux-list <video4linux-list@redhat.com>,
Mauro Carvalho Chehab <mchehab@infradead.org>,
v4l-dvb-maintainer@linuxtv.org, "Rafael J. Wysocki" <rjw@sisk.pl>
Subject: Re: [PATCH] Re: Regression: VIDIOCGMBUF ioctl hangs on bttv driver (2.6.24-rc6)
Date: Sun, 6 Jan 2008 16:17:30 +0100 [thread overview]
Message-ID: <20080106151730.GA17789@elte.hu> (raw)
In-Reply-To: <20080106141548.GB18690@vidsoft.de>
* Gregor Jasny <jasny@vidsoft.de> wrote:
> From: Gregor Jasny <gjasny@web.de>
>
> Fix bttv VIDIOCGMBUF locking like done in commit
> 820eacd84cff23b76693f4be1e28feb672f4488f.
i've double-checked that there are no other video drivers affected by
this problem:
$ cd drivers/media/
$ grep -C 10 videobuf_mmap_setup `grep -l mutex_lock */*.c */*/*.c */*/*/*.c`
video/videobuf-core.c- mutex_lock(&q->lock);
video/videobuf-core.c- mutex_lock(&q->lock);
video/bt8xx/bttv-driver.c- mutex_lock(&fh->cap.lock);
so only bttv-driver.c was affected, at first sight.
Ingo
next prev parent reply other threads:[~2008-01-06 15:18 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-05 22:33 Regression: VIDIOCGMBUF ioctl hangs on bttv driver (2.6.24-rc6) Gregor Jasny
2008-01-05 23:32 ` Rafael J. Wysocki
2008-01-06 14:15 ` [PATCH] " Gregor Jasny
2008-01-06 15:17 ` Ingo Molnar [this message]
2008-01-06 22:53 ` [v4l-dvb-maintainer] " Douglas Landgraf
2008-01-06 22:55 ` Douglas Landgraf
2008-01-06 23:22 ` Ingo Molnar
2008-01-07 2:02 ` Douglas Landgraf
2008-01-07 9:43 ` Mauro Carvalho Chehab
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