linux-kernel - Re: [PATCH v1 17/19] mmc: meson-mx-sdhc: Fix error check for dma_map

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Message-ID: <CAFBinCCbjF_mkV+EaOtC0g_YbtX9TzBEN5fRJ_MiPaie5hxCwQ@mail.gmail.com>
Date:   Sat, 20 Aug 2022 19:25:52 +0200
From:   Martin Blumenstingl <martin.blumenstingl@...glemail.com>
To:     Jack Wang <jinpu.wang@...os.com>
Cc:     linux-kernel@...r.kernel.org, Ulf Hansson <ulf.hansson@...aro.org>,
        Neil Armstrong <narmstrong@...libre.com>,
        Kevin Hilman <khilman@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        linux-mmc@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org
Subject: Re: [PATCH v1 17/19] mmc: meson-mx-sdhc: Fix error check for dma_map_sg

Hello Jack,

first of all: thank you for this patch!

On Fri, Aug 19, 2022 at 8:08 AM Jack Wang <jinpu.wang@...os.com> wrote:
[...]
> @@ -388,7 +388,7 @@ static int meson_mx_sdhc_map_dma(struct mmc_host *mmc, struct mmc_request *mrq)
>
>         dma_len = dma_map_sg(mmc_dev(mmc), data->sg, data->sg_len,
Does it also make sense to change the type of the dma_len variable
from (signed) int to "unsigned int" (a few lines above)?


Best regards,
Martin