From: Kalle Valo <kvalo@codeaurora.org>
To: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Solomon Peachy <pizza@shaftnet.org>,
linux-wireless@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: Re: [PATCH v2] cw1200: Fix a signedness bug in cw1200_load_firmware()
Date: Tue, 01 Oct 2019 15:02:35 +0300 [thread overview]
Message-ID: <87a7ak65d0.fsf@kamboji.qca.qualcomm.com> (raw)
In-Reply-To: <20191001114501.GA6550@mwanda> (Dan Carpenter's message of "Tue, 1 Oct 2019 14:45:01 +0300")
Dan Carpenter <dan.carpenter@oracle.com> writes:
> The "priv->hw_type" is an enum and in this context GCC will treat it
> as an unsigned int so the error handling will never trigger.
>
> Fixes: a910e4a94f69 ("cw1200: add driver for the ST-E CW1100 & CW1200 WLAN chipsets")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> ---
> v2: better style and preserve the error code.
>
> drivers/net/wireless/st/cw1200/fwio.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/net/wireless/st/cw1200/fwio.c b/drivers/net/wireless/st/cw1200/fwio.c
> index 6574e78e05ea..2a03dc533b6a 100644
> --- a/drivers/net/wireless/st/cw1200/fwio.c
> +++ b/drivers/net/wireless/st/cw1200/fwio.c
> @@ -320,12 +320,12 @@ int cw1200_load_firmware(struct cw1200_common *priv)
> goto out;
> }
>
> - priv->hw_type = cw1200_get_hw_type(val32, &major_revision);
> - if (priv->hw_type < 0) {
> + ret = cw1200_get_hw_type(val32, &major_revision);
> + if (ret < 0) {
> pr_err("Can't deduce hardware type.\n");
> - ret = -ENOTSUPP;
> goto out;
> }
> + priv->hw_type = ret;
Thanks, this is indeed much better.
--
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
next prev parent reply other threads:[~2019-10-01 12:02 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-25 10:59 [PATCH] cw1200: Fix a signedness bug in cw1200_load_firmware() Dan Carpenter
2019-09-25 11:06 ` Kalle Valo
2019-10-01 11:45 ` [PATCH v2] " Dan Carpenter
2019-10-01 12:02 ` Kalle Valo [this message]
2019-10-02 4:35 ` Kalle Valo
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