[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH] xen/blkfront: beyond ARRAY_SIZE of info->shadow
Do not go beyond ARRAY_SIZE of info->shadow Signed-off-by: Roel Kluin <roel.kluin@xxxxxxxxx> --- diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index a6cbf7b..d395986 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -122,7 +122,7 @@ static DEFINE_SPINLOCK(blkif_io_lock); static int get_id_from_freelist(struct blkfront_info *info) { unsigned long free = info->shadow_free; - BUG_ON(free > BLK_RING_SIZE); + BUG_ON(free >= BLK_RING_SIZE); info->shadow_free = info->shadow[free].req.id; info->shadow[free].req.id = 0x0fffffee; /* debug */ return free; _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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