linux-kernel - Re: [PATCH v2] staging: rtl8723au: Fix resource leak

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Message-ID: <wrfjr3limmi0.fsf@redhat.com>
Date:	Mon, 28 Sep 2015 14:23:19 -0400
From:	Jes Sorensen <Jes.Sorensen@...hat.com>
To:	Mateusz Kulikowski <mateusz.kulikowski@...il.com>
Cc:	Larry.Finger@...inger.net, gregkh@...uxfoundation.org,
	linux-wireless@...r.kernel.org, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] staging: rtl8723au: Fix resource leak

Mateusz Kulikowski <mateusz.kulikowski@...il.com> writes:
> Firmware was not released properly if kmemdup fails.
>
> Addresses-Coverity-Id: 1269118
> Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@...il.com>
> ---
>  drivers/staging/rtl8723au/hal/rtl8723a_hal_init.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

Acked-by: Jes Sorensen <Jes.Sorensen@...hat.com>

>
> diff --git a/drivers/staging/rtl8723au/hal/rtl8723a_hal_init.c b/drivers/staging/rtl8723au/hal/rtl8723a_hal_init.c
> index cd014f7..ecf54ee 100644
> --- a/drivers/staging/rtl8723au/hal/rtl8723a_hal_init.c
> +++ b/drivers/staging/rtl8723au/hal/rtl8723a_hal_init.c
> @@ -249,13 +249,13 @@ int rtl8723a_FirmwareDownload(struct rtw_adapter *padapter)
>  		goto Exit;
>  	}
>  	firmware_buf = kmemdup(fw->data, fw->size, GFP_KERNEL);
> +	fw_size = fw->size;
> +	release_firmware(fw);
>  	if (!firmware_buf) {
>  		rtStatus = _FAIL;
>  		goto Exit;
>  	}
>  	buf = firmware_buf;
> -	fw_size = fw->size;
> -	release_firmware(fw);
>  
>  	/*  To Check Fw header. Added by tynli. 2009.12.04. */
>  	pFwHdr = (struct rt_8723a_firmware_hdr *)firmware_buf;
--
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