linux-kernel - Re: [PATCH 38/76] tty: usb-serial krefs

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

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Sun, 5 Oct 2008 22:36:58 -0700
From:	Greg KH <greg@...ah.com>
To:	Alan Cox <alan@...hat.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 38/76] tty: usb-serial krefs

On Sun, Oct 05, 2008 at 05:11:38PM +0100, Alan Cox wrote:
> Use kref in the USB serial drivers so that we don't free tty structures
> from under the URB receive handlers as has historically been the case if
> you were unlucky. This also gives us a framework for general tty drivers to
> use tty_port objects and refcount.

Should we be calling kref_get() and kref_put() in interrupt context?
Could we just get the reference in open and then put in close when we
are done with it for each driver?

thanks,

greg k-h
--
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/