Re: [RESEND 2/2] - usbserial: race-condition fix.

From: Greg KH
Date: Wed Nov 23 2005 - 13:01:59 EST


On Wed, Nov 23, 2005 at 03:46:50PM -0200, Luiz Fernando Capitulino wrote:
> On Tue, 22 Nov 2005 14:13:53 -0800
> Greg KH <gregkh@xxxxxxx> wrote:
>
> | On Tue, Nov 22, 2005 at 07:59:26PM -0200, Luiz Fernando Capitulino wrote:
> | > @@ -60,6 +61,7 @@ struct usb_serial_port {
> | > struct usb_serial * serial;
> | > struct tty_struct * tty;
> | > spinlock_t lock;
> | > + struct semaphore sem;
> |
> | You forgot to document what this semaphore is used for.
>
> Here goes the second patch again, with the documentation now.
>
> As I said before, would be good to apply these two patches now, and I
> can cleanup the spinlock usage until next week.

How will you clean it up?

> Fixes a race-condition in the access of the port structure, described
> in detail at: http://marc.theaimsgroup.com/?l=linux-kernel&m=113216151918308&w=2

Please put the full detail in the email, so I can put it in the
ChangeLog so people have an easy place to get the proper information.

Care to redo it again?

thanks,

greg k-h
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