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From: Sergei Shtylyov <sshtylyov@mvista.com>
To: Steven Hardy <shardy@redhat.com>
Cc: Greg KH <gregkh@suse.de>, Aristeu Rozanski <aris@redhat.com>,
	mjg@redhat.com, linux-usb@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [GIT PATCH 2/3 (2nd draft)] Resend : Fix memory leak in qcserial driver
Date: Tue, 29 Mar 2011 15:26:35 +0400	[thread overview]
Message-ID: <4D91C1EB.5060604@ru.mvista.com> (raw)
In-Reply-To: <20110328221636.GA8195@shardy.csb>

Hello.

On 29-03-2011 2:16, Steven Hardy wrote:

> Second draft of patch #2, this addresses the review comments made by Aristeu Rozanski, now usb_set_serial_data() is only called when we are not returning -ENODEV

    Such comments should be put under --- tearline (which should appear under 
your signoff). Otherwise Greg will have to hand edit them out of your patch.

> Original description:

    Omit that please.

> Don't assign serial->private when doing the kzalloc or serial->private ends up pointing to freed memory in the event we return -ENODEV, instead call usb_set_serial_data(serial, data) at the end of the function, and only have one return-point.

    Still not properly wrapped.

> Signed-off-by: Steve Hardy<shardy@redhat.com>


> diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c
> index 6e3b933..b9b97ad 100644
> --- a/drivers/usb/serial/qcserial.c
> +++ b/drivers/usb/serial/qcserial.c
[...]
> @@ -199,9 +199,12 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
>   		dev_err(&serial->dev->dev,
>   			"unknown number of interfaces: %d\n", nintf);
>   		kfree(data);
> -		return -ENODEV;
> +		retval = -ENODEV;
>   	}
>
> +	/* Set serial->private if not returning -ENODEV */
> +	if ( retval != -ENODEV )

    No spaces after ( and before ) allowed.

WBR, Sergei

  reply	other threads:[~2011-03-29 11:28 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-03-28 14:06 [GIT PATCH] Fix memory leak in qcserial driver Steven Hardy
2011-03-28 14:21 ` Greg KH
2011-03-28 17:33   ` [GIT PATCH 1/3] Resend : " Steven Hardy
2011-03-28 17:38   ` [GIT PATCH 2/3] " Steven Hardy
2011-03-29 11:22     ` Sergei Shtylyov
2011-03-28 17:41   ` [GIT PATCH 3/3] " Steven Hardy
2011-03-28 22:16   ` [GIT PATCH 2/3 (2nd draft)] " Steven Hardy
2011-03-29 11:26     ` Sergei Shtylyov [this message]
2011-04-04 16:57       ` [PATCH 1/3] usb: Fix qcserial memory leak on rmmod Steven Hardy
2011-04-04 16:59         ` [PATCH 2/3] usb: qcserial avoid pointing to freed memory Steven Hardy
2011-04-04 17:02         ` [PATCH 3/3] usb: qcserial add missing errorpath kfrees Steven Hardy
2011-03-29 13:22     ` [GIT PATCH 2/3 (2nd draft)] Resend : Fix memory leak in qcserial driver Aristeu Rozanski
2011-03-28 17:34 ` [GIT PATCH] " Aristeu Rozanski
2011-03-28 17:48   ` Steven Hardy
2011-03-28 17:54     ` Aristeu Rozanski
2011-03-28 20:42       ` Steven Hardy

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