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From: Andres Salomon <dilinger@queued.net>
To: linux-kernel@vger.kernel.org
Cc: linux-usb@vger.kernel.org
Subject: Re: [PATCH 12/14] USB: oti6858: fix DMA buffer on stack
Date: Mon, 28 Dec 2009 17:46:19 -0500	[thread overview]
Message-ID: <20091228174619.3c5b2132@mycelium.queued.net> (raw)
In-Reply-To: <1262037718-31424-13-git-send-email-jhovold@gmail.com>

On Mon, 28 Dec 2009 23:01:56 +0100
Johan Hovold <jhovold@gmail.com> wrote:

[...]
> diff --git a/drivers/usb/serial/oti6858.c
> b/drivers/usb/serial/oti6858.c index c644e26..2ae97e7 100644
> --- a/drivers/usb/serial/oti6858.c
> +++ b/drivers/usb/serial/oti6858.c
> @@ -302,7 +302,7 @@ void send_data(struct work_struct *work)
>  	struct usb_serial_port *port = priv->port;
>  	int count = 0, result;
>  	unsigned long flags;
> -	unsigned char allow;
> +	u8 *allow;
>  
>  	dbg("%s(port = %d)", __func__, port->number);
>  

Erm, am I missing something here?  You're removing a 1 byte
stack variable and replacing it with a 4 byte (pointer) stack
variable?  What's the point of that, exactly?




  reply	other threads:[~2009-12-28 22:47 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-12-28 22:01 [PATCH 00/14] USB: serial: fix DMA buffers on stack and endianess bugs Johan Hovold
2009-12-28 22:01 ` [PATCH 01/14] USB: ch341: replace printk warnings with dev_err Johan Hovold
2009-12-28 22:01 ` [PATCH 02/14] USB: ch341: fix DMA buffer on stack Johan Hovold
2009-12-28 22:01 ` [PATCH 03/14] USB: ch341: use le16_to_cpup to be explicit about endianess Johan Hovold
2009-12-28 22:01 ` [PATCH 04/14] USB: cypress_m8: fix DMA buffer on stack Johan Hovold
2009-12-28 22:01 ` [PATCH 05/14] USB: cypress_m8: fix endianess bug Johan Hovold
2009-12-28 22:01 ` [PATCH 06/14] USB: io_ti: fix DMA buffers on stack Johan Hovold
2009-12-28 22:01 ` [PATCH 07/14] USB: keyspan_pda: " Johan Hovold
2009-12-28 22:01 ` [PATCH 08/14] USB: kl5kusb105: " Johan Hovold
2009-12-28 22:01 ` [PATCH 09/14] USB: mct_u232: " Johan Hovold
2009-12-31 11:40   ` Johan Hovold
2010-01-15 18:43     ` Greg KH
2009-12-28 22:01 ` [PATCH 10/14] USB: mos7720: fix DMA buffers on stack and clean up send_mos_cmd Johan Hovold
2009-12-28 22:01 ` [PATCH 11/14] USB: mos7840: fix DMA buffers on stack and endianess bugs Johan Hovold
2009-12-28 22:01 ` [PATCH 12/14] USB: oti6858: fix DMA buffer on stack Johan Hovold
2009-12-28 22:46   ` Andres Salomon [this message]
2009-12-28 22:51     ` Andres Salomon
2009-12-28 22:01 ` [PATCH 13/14] USB: visor: fix DMA buffers " Johan Hovold
2009-12-28 22:01 ` [PATCH 14/14] USB: kobil_sct: clean up kobil_set_termios Johan Hovold
2009-12-30 16:06 ` [PATCH 00/14] USB: serial: fix DMA buffers on stack and endianess bugs Dan Carpenter
2009-12-30 17:33   ` Johan Hovold
2009-12-30 16:06 ` [patch] USB: serial: fix DMA buffers on stack for io_edgeport.c Dan Carpenter
2009-12-30 17:14   ` Johan Hovold
2009-12-30 17:50     ` Dan Carpenter
2009-12-31 15:42     ` [patch v2] " Dan Carpenter
2009-12-31 15:47 ` [PATCH 00/13][v2] USB: serial: fix DMA buffers on stack and endianess bugs Johan Hovold
2010-01-15 18:50   ` Greg KH
2010-01-16 12:45     ` Johan Hovold
2009-12-31 15:47 ` [PATCH 01/13] USB: ch341: replace printk warnings with dev_err Johan Hovold
2009-12-31 15:47 ` [PATCH 02/13] USB: ch341: fix DMA buffer on stack Johan Hovold
2009-12-31 15:47 ` [PATCH 03/13] USB: ch341: use get_unaligned_le16 in break_ctl Johan Hovold
2009-12-31 15:48 ` [PATCH 04/13] USB: cypress_m8: fix DMA buffer on stack Johan Hovold
2009-12-31 15:48 ` [PATCH 05/13] USB: cypress_m8: fix endianess bug and alignment Johan Hovold
2009-12-31 15:48 ` [PATCH 06/13] USB: io_ti: fix DMA buffers on stack Johan Hovold
2009-12-31 15:48 ` [PATCH 07/13] USB: keyspan_pda: " Johan Hovold
2009-12-31 15:48 ` [PATCH 08/13] USB: kl5kusb105: " Johan Hovold
2009-12-31 15:48 ` [PATCH 09/13] USB: mos7720: fix DMA buffers on stack and clean up send_mos_cmd Johan Hovold
2009-12-31 15:48 ` [PATCH 10/13] USB: mos7840: fix DMA buffers on stack and endianess bugs Johan Hovold
2009-12-31 15:48 ` [PATCH 11/13] USB: oti6858: fix DMA buffer on stack Johan Hovold
2009-12-31 15:48 ` [PATCH 12/13] USB: visor: fix DMA buffers " Johan Hovold
2009-12-31 15:48 ` [PATCH 13/13] USB: kobil_sct: clean up kobil_set_termios Johan Hovold

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