linux-kernel - Re: [PATCH] mtd: nand: mxic-ecc: Fix mxic_ecc_data_xfer_wait_for

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Date:   Tue,  7 Mar 2023 20:21:27 +0100
From:   Miquel Raynal <miquel.raynal@...tlin.com>
To:     Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>
Cc:     linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        linux-mtd@...ts.infradead.org
Subject: Re: [PATCH] mtd: nand: mxic-ecc: Fix mxic_ecc_data_xfer_wait_for_completion() when irq is used

On Wed, 2023-02-15 at 11:08:45 UTC, Christophe JAILLET wrote:
> wait_for_completion_timeout() and readl_poll_timeout() don't handle their
> return value the same way.
> 
> wait_for_completion_timeout() returns 0 on time out (and >0 in all other
> cases)
> readl_poll_timeout() returns 0 on success and -ETIMEDOUT upon a timeout.
> 
> In order for the error handling path to work in both cases, the logic
> against wait_for_completion_timeout() needs to be inverted.
> 
> Fixes: 48e6633a9fa2 ("mtd: nand: mxic-ecc: Add Macronix external ECC engine support")
> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>

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

Miquel