From: Artem Bityutskiy <dedekind1@gmail.com>
To: Ivan Djelic <ivan.djelic@parrot.com>
Cc: linux-mtd@lists.infradead.org
Subject: Re: [PATCH] mtd: nand: omap: fix race condition in omap_wait()
Date: Fri, 27 Apr 2012 08:50:21 +0300 [thread overview]
Message-ID: <1335505821.1767.2.camel@koala> (raw)
In-Reply-To: <1334661113-24709-1-git-send-email-ivan.djelic@parrot.com>
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On Tue, 2012-04-17 at 13:11 +0200, Ivan Djelic wrote:
> If a context switch occurs in function omap_wait() just before the
> while loop is entered, then upon return from context switch the
> timeout may already have elapsed: in that case, status is never
> read from NAND device, and omap_wait() returns an error.
> This failure has been experimentally observed during stress tests.
>
> This patch ensures a NAND status read is always performed before
> returning, as in the generic nand_wait() function.
>
> Signed-off-by: Ivan Djelic <ivan.djelic@parrot.com>
Pushed this one to l2-mtd.git, thanks!
--
Best Regards,
Artem Bityutskiy
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next prev parent reply other threads:[~2012-04-27 5:51 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-17 11:11 [PATCH] mtd: nand: omap: fix race condition in omap_wait() Ivan Djelic
2012-04-27 5:50 ` Artem Bityutskiy [this message]
2012-04-27 11:26 ` Mark Olleson
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