linux-kernel - Re: [PATCH 1/1] usb: chipidea: Fix oops when removing the ci

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:	Sat, 4 Oct 2014 10:48:55 +0800
From:	Peter Chen <peter.chen@...escale.com>
To:	Torsten Fleischer <to-fleischer@...nline.de>
CC:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	<linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 1/1] usb: chipidea: Fix oops when removing the ci_hdrc
 module

On Fri, Oct 03, 2014 at 11:01:20AM +0200, Torsten Fleischer wrote:
> The call of 'kfree(ci->hw_bank.regmap)' in ci_hdrc_remove() sometimes causes
> a kernel oops when removing the ci_hdrc module.
> 
> Since there is no separate memory allocated for the ci->hw_bank.regmap array,
> there is no need to free it.
> 
> Signed-off-by: Torsten Fleischer <to-fleischer@...nline.de>
> ---
>  drivers/usb/chipidea/core.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
> index 619d13e..4ecb650 100644
> --- a/drivers/usb/chipidea/core.c
> +++ b/drivers/usb/chipidea/core.c
> @@ -732,7 +732,6 @@ static int ci_hdrc_remove(struct platform_device *pdev)
>  	ci_role_destroy(ci);
>  	ci_hdrc_enter_lpm(ci, true);
>  	usb_phy_shutdown(ci->transceiver);
> -	kfree(ci->hw_bank.regmap);
>  
>  	return 0;
>  }
> -- 
> 1.8.4.5
> 

Good fix, applied, thanks.

-- 
Best Regards,
Peter Chen
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/