linux-kernel - Re: Oops in usb-serial with keyspan adapter on current upstream

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Message-Id: <1243395030.17847.55.camel@pasglop>
Date:	Wed, 27 May 2009 13:30:30 +1000
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Alan Stern <stern@...land.harvard.edu>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>,
	Linux Kernel list <linux-kernel@...r.kernel.org>,
	linux-usb@...r.kernel.org
Subject: Re: Oops in usb-serial with keyspan adapter on current upstream


> Very clever.  Does this simpler patch also fix the problem?

Yes it does, thanks.

Tested-by: Benjamin Herrenschmidt <benh@...nel.crashing.org>
---
> 
> Index: usb-2.6/drivers/usb/serial/usb-serial.c
> ===================================================================
> --- usb-2.6.orig/drivers/usb/serial/usb-serial.c
> +++ usb-2.6/drivers/usb/serial/usb-serial.c
> @@ -974,6 +974,7 @@ int usb_serial_probe(struct usb_interfac
>  		if (retval > 0) {
>  			/* quietly accept this device, but don't bind to a
>  			   serial port as it's about to disappear */
> +			serial->num_ports = 0;
>  			goto exit;
>  		}
>  	}
> 
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