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Date: Sat, 26 Sep 2015 13:56:12 -0700 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Dan Carpenter <dan.carpenter@...cle.com>, "David S. Miller" <davem@...emloft.net> Subject: [PATCH 4.1 126/159] net/xen-netback: off by one in BUG_ON() condition 4.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Dan Carpenter <dan.carpenter@...cle.com> [ Upstream commit 50c2e4dd6749725338621fff456b26d3a592259f ] The > should be >=. I also added spaces around the '-' operations so the code is a little more consistent and matches the condition better. Fixes: f53c3fe8dad7 ('xen-netback: Introduce TX grant mapping') Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com> Signed-off-by: David S. Miller <davem@...emloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- drivers/net/xen-netback/netback.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) --- a/drivers/net/xen-netback/netback.c +++ b/drivers/net/xen-netback/netback.c @@ -1571,13 +1571,13 @@ static inline void xenvif_tx_dealloc_act smp_rmb(); while (dc != dp) { - BUG_ON(gop - queue->tx_unmap_ops > MAX_PENDING_REQS); + BUG_ON(gop - queue->tx_unmap_ops >= MAX_PENDING_REQS); pending_idx = queue->dealloc_ring[pending_index(dc++)]; - pending_idx_release[gop-queue->tx_unmap_ops] = + pending_idx_release[gop - queue->tx_unmap_ops] = pending_idx; - queue->pages_to_unmap[gop-queue->tx_unmap_ops] = + queue->pages_to_unmap[gop - queue->tx_unmap_ops] = queue->mmap_pages[pending_idx]; gnttab_set_unmap_op(gop, idx_to_kaddr(queue, pending_idx), -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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