linux-kernel - Re: [PATCH] net: brcm80211: Delete an unnecessary check before the function call "release

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Date:	Wed, 11 Nov 2015 10:18:23 +0100
From:	Arend van Spriel <arend@...adcom.com>
To:	SF Markus Elfring <elfring@...rs.sourceforge.net>,
	Brett Rudley <brudley@...adcom.com>,
	"Franky (Zhenhui) Lin" <frankyl@...adcom.com>,
	Hante Meuleman <meuleman@...adcom.com>,
	Kalle Valo <kvalo@...eaurora.org>,
	<brcm80211-dev-list@...adcom.com>,
	<linux-wireless@...r.kernel.org>, <netdev@...r.kernel.org>
CC:	LKML <linux-kernel@...r.kernel.org>,
	<kernel-janitors@...r.kernel.org>,
	Julia Lawall <julia.lawall@...6.fr>
Subject: Re: [PATCH] net: brcm80211: Delete an unnecessary check before the
 function call "release_firmware"

On 11/06/2015 08:58 AM, SF Markus Elfring wrote:
> From: Markus Elfring <elfring@...rs.sourceforge.net>
> Date: Fri, 6 Nov 2015 08:48:23 +0100
>
> The release_firmware() function tests whether its argument is NULL and then
> returns immediately. Thus the test around the call is not needed.
>
> This issue was detected by using the Coccinelle software.

Acked-by: Arend van Spriel <arend@...adcom.com>
> Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
> ---
>   drivers/net/wireless/brcm80211/brcmfmac/firmware.c | 3 +--
>   1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/net/wireless/brcm80211/brcmfmac/firmware.c b/drivers/net/wireless/brcm80211/brcmfmac/firmware.c
> index 4248f3c..33afb9a 100644
> --- a/drivers/net/wireless/brcm80211/brcmfmac/firmware.c
> +++ b/drivers/net/wireless/brcm80211/brcmfmac/firmware.c
> @@ -449,8 +449,7 @@ static void brcmf_fw_request_nvram_done(const struct firmware *fw, void *ctx)
>
>   	if (raw_nvram)
>   		bcm47xx_nvram_release_contents(data);
> -	if (fw)
> -		release_firmware(fw);
> +	release_firmware(fw);
>   	if (!nvram && !(fwctx->flags & BRCMF_FW_REQ_NV_OPTIONAL))
>   		goto fail;
>
>

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