linux-kernel - Re: [PATCH v2] sdio: Fix a memory leaking bug in wl1271

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Date:   Thu, 23 May 2019 18:00:21 +0300
From:   Kalle Valo <kvalo@...eaurora.org>
To:     Gen Zhang <blackgod016574@...il.com>
Cc:     eyalreizer@...il.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-wireless@...r.kernel.org
Subject: Re: [PATCH v2] sdio: Fix a memory leaking bug in wl1271_probe()

+ linux-wireless

Gen Zhang <blackgod016574@...il.com> writes:

> In wl1271_probe(), 'glue->core' is allocated by platform_device_alloc(),
> when this allocation fails, ENOMEM is returned. However, 'pdev_data'
> and 'glue' are allocated by devm_kzalloc() before 'glue->core'. When
> platform_device_alloc() returns NULL, we should also free 'pdev_data'
> and 'glue' before wl1271_probe() ends to prevent leaking memory.
>
> Similarly, we should free 'pdev_data' when 'glue' is NULL. And we
> should free 'pdev_data' and 'glue' when 'ret' is error.
>
> Further, we shoulf free 'glue->dev', 'pdev_data' and 'glue' when this
> function normally ends to prevent memory leaking.
>
> Signed-off-by: Gen Zhang <blackgod016574@...il.com>
> ---
> diff --git a/drivers/net/wireless/ti/wlcore/sdio.c b/drivers/net/wireless/ti/wlcore/sdio.c
> index 4d4b0770..232ce5f 100644
> --- a/drivers/net/wireless/ti/wlcore/sdio.c
> +++ b/drivers/net/wireless/ti/wlcore/sdio.c

You need to CC linux-wireless, otherwise patchwork won't see the patch
and it will not be applied. Also you should use prefix "wlcore:".

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches#commit_title_is_wrong

-- 
Kalle Valo