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USB: FIX bitfield istl_flip:1, make it unsigned.

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istl_flip is a signed bitfield of one bit so it can be -1 or 0.
However in drivers/usb/host/isp1362-hcd.c:1103:

finish_iso_transfers(isp1362_hcd,
	&isp1362_hcd->istl_queue[isp1362_hcd->istl_flip]);

So if isp1362_hcd->istl_flip is set, the 2nd argument becomes
&isp1362_hcd->istl_queue[-1], which is invalid.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Roel Kluin 2009-11-18 14:12:31 +01:00 committed by Greg Kroah-Hartman
parent 55f49f2682
commit 22a627ba81
1 changed files with 2 additions and 2 deletions
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4
drivers/usb/host/isp1362.h
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@ -534,8 +534,8 @@ struct isp1362_hcd {
/* periodic schedule: isochronous */
struct list_head isoc;
int istl_flip:1;
int irq_active:1;
unsigned int istl_flip:1;
unsigned int irq_active:1;
/* Schedules for the current frame */
struct isp1362_ep_queue atl_queue;