From: Brian Norris <computersforpeace@gmail.com>
To: linux-mtd@lists.infradead.org
Cc: linux-kernel@vger.kernel.org, Felipe Balbi <balbi@ti.com>,
tony@atomide.com, stable@vger.kernel.org
Subject: Re: [PATCH] mtd: blkdevs: fix potential deadlock + lockdep warnings
Date: Fri, 30 Oct 2015 17:27:23 -0700 [thread overview]
Message-ID: <20151031002723.GN13239@google.com> (raw)
In-Reply-To: <1445913529-19887-1-git-send-email-computersforpeace@gmail.com>
On Mon, Oct 26, 2015 at 07:38:49PM -0700, Brian Norris wrote:
> Commit 073db4a51ee4 ("mtd: fix: avoid race condition when accessing
> mtd->usecount") fixed a race condition but due to poor ordering of the
> mutex acquisition, introduced a potential deadlock.
[...]
>
> Fixes: 073db4a51ee4 ("mtd: fix: avoid race condition when accessing mtd->usecount")
> Reported-by: Felipe Balbi <balbi@ti.com>
> Tested-by: Felipe Balbi <balbi@ti.com>
> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
> Cc: <stable@vger.kernel.org>
Pushed to l2-mtd.git.
> ---
> Resending as a proper patch
>
> Note: I tried to reproduce this lockdep warning myself but couldn't. But I saw
> no problem under the new patch either.
prev parent reply other threads:[~2015-10-31 0:27 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-27 2:38 [PATCH] mtd: blkdevs: fix potential deadlock + lockdep warnings Brian Norris
2015-10-31 0:27 ` Brian Norris [this message]
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