linux-kernel - Re: [PATCH v2] usb: host: pci_quirks: fix memory leak, by adding iounmap

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

Message-ID: <20151204162314.GA31475@kroah.com>
Date:	Fri, 4 Dec 2015 08:23:14 -0800
From:	Greg KH <gregkh@...uxfoundation.org>
To:	Saurabh Sengar <saurabh.truth@...il.com>
Cc:	mathias.nyman@...el.com, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] usb: host: pci_quirks: fix memory leak, by adding
 iounmap

On Wed, Dec 02, 2015 at 10:51:37PM +0530, Saurabh Sengar wrote:
> added iounmap inorder to free memory mapped to base before returning
> 
> Signed-off-by: Saurabh Sengar <saurabh.truth@...il.com>
> ---
> v2: changed logic a bit, because of recent patches pushed to usb-next
>  drivers/usb/host/pci-quirks.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
> index 26cb8c8..2ac198c 100644
> --- a/drivers/usb/host/pci-quirks.c
> +++ b/drivers/usb/host/pci-quirks.c
> @@ -992,7 +992,7 @@ static void quirk_usb_handoff_xhci(struct pci_dev *pdev)
>  	if ((ext_cap_offset + sizeof(val)) > len) {
>  		/* We're reading garbage from the controller */
>  		dev_warn(&pdev->dev, "xHCI controller failing to respond");
> -		return;
> +		goto hc_init;

Are you sure this is correct?  That goto location then does a whole
bunch of things with the xhci controller that you just now determined is
failing to respond.  I can't take this as-is, sorry.

greg k-h
--
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/