linux-kernel - ATM bug found

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Message-ID: <451FC182.6000502@garzik.org>
Date:	Sun, 01 Oct 2006 09:24:18 -0400
From:	Jeff Garzik <jeff@...zik.org>
To:	chas@....nrl.navy.mil, Netdev List <netdev@...r.kernel.org>
CC:	Andrew Morton <akpm@...l.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: ATM bug found

Unlike 98% of the warnings of this type, this gcc warning does indeed 
seem to indicate a bug:

drivers/atm/zatm.c: In function ‘zatm_open’:
drivers/atm/zatm.c:919: warning: ‘pcr’ may be used uninitialized in this 
function

If alloc_shaper() argument 'unlimited' is true, then pcr is never 
assigned a value.  However, the caller of alloc_shaper() always tests 
the pcr value, regardless of whether or not 'unlimited' is true.

	Jeff

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