linux-kernel - Re: [PATCH] mtd: core: don't remove debugfs directory if device is in use

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Message-Id: <20211015103107.948869-1-miquel.raynal@bootlin.com>
Date:   Fri, 15 Oct 2021 12:31:07 +0200
From:   Miquel Raynal <miquel.raynal@...tlin.com>
To:     Zev Weiss <zev@...ilderbeest.net>, linux-mtd@...ts.infradead.org
Cc:     Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        Michael Walle <michael@...le.cc>,
        Zhen Lei <thunder.leizhen@...wei.com>,
        Lee Jones <lee.jones@...aro.org>,
        Tian Tao <tiantao6@...ilicon.com>,
        Jon Hunter <jonathanh@...dia.com>, Petr Malat <oss@...at.biz>,
        Brian Norris <computersforpeace@...il.com>,
        Boris Brezillon <bbrezillon@...nel.org>,
        Mario Rugiero <mrugiero@...il.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mtd: core: don't remove debugfs directory if device is in use

On Thu, 2021-10-14 at 20:39:52 UTC, Zev Weiss wrote:
> Previously, if del_mtd_device() failed with -EBUSY due to a non-zero
> usecount, a subsequent call to attempt the deletion again would try to
> remove a debugfs directory that had already been removed and panic.
> With this change the second call can instead proceed safely.
> 
> Fixes: e8e3edb95ce6 ("mtd: create per-device and module-scope debugfs entries")
> Signed-off-by: Zev Weiss <zev@...ilderbeest.net>

Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git mtd/next, thanks.

Miquel