linux-kernel - Re: [PATCH][next] mtd: devices: mchp48l640: Fix return of uninitialized value in ret

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Message-ID: <b0d971da-ff2e-7ad4-cba7-32a1406b983d@denx.de>
Date:   Tue, 15 Jun 2021 17:38:05 +0200
From:   Heiko Schocher <hs@...x.de>
To:     Colin King <colin.king@...onical.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        linux-mtd@...ts.infradead.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH][next] mtd: devices: mchp48l640: Fix return of
 uninitialized value in ret

Hello Colin,

On 15.06.21 16:06, Colin King wrote:
> From: Colin Ian King <colin.king@...onical.com>
> 
> In the case where the read or write lengths are zero bytes the return
> value in variable ret has not been initialized and a garbage value
> is returned. Fix this by initializing ret to zero.
> 
> Addresses-Coverity: ("Uninitialized scalar variable")
> Fixes: 88d125026753 ("mtd: devices: add support for microchip 48l640 EERAM")
> Signed-off-by: Colin Ian King <colin.king@...onical.com>
> ---
>  drivers/mtd/devices/mchp48l640.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

Thanks!

Reviewed-by: Heiko Schocher <hs@...x.de>

bye,
Heiko
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