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authorDan Carpenter <dan.carpenter@oracle.com>2015-07-12 01:20:55 +0300
committerDavid S. Miller <davem@davemloft.net>2015-07-15 01:40:52 +0300
commit50c2e4dd6749725338621fff456b26d3a592259f (patch)
tree10688602499cf59e79811ee41c8ceea0a9910b12 /drivers/net/xen-netback
parentf760b87f8f12eb262f14603e65042996fe03720e (diff)
downloadlinux-50c2e4dd6749725338621fff456b26d3a592259f.tar.xz
net/xen-netback: off by one in BUG_ON() condition
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@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/xen-netback')
-rw-r--r--drivers/net/xen-netback/netback.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index 880d0d63e872..7d50711476fe 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -1566,13 +1566,13 @@ 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),