These changes are a raw update to a vanilla kernel 4.1.10, with the

[kvmfornfv.git] / kernel / drivers / net / xen-netback / netback.c

diff --git a/kernel/drivers/net/xen-netback/netback.c b/kernel/drivers/net/xen-netback/netback.c
index 0d25943..0866c5d 100644 (file)
--- a/kernel/drivers/net/xen-netback/netback.c
+++ b/kernel/drivers/net/xen-netback/netback.c
@@ -1571,13 +1571,13 @@ static inline void xenvif_tx_dealloc_action(struct xenvif_queue *queue)
                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),