diff options
| author | Eli Cohen <eli@dev.mellanox.co.il> | 2013-10-31 15:26:33 +0200 |
|---|---|---|
| committer | Roland Dreier <roland@purestorage.com> | 2013-11-15 14:36:35 -0800 |
| commit | 2b136d025348774633a2f6fc2a87f0cf409a3ab9 (patch) | |
| tree | 9d66d199f81bb4d9b37a0802e97b0cacaca9b884 | |
| parent | 7e2e19210a8bbbcacd31e8ce4a0ea64e3ac37dea (diff) | |
IB/mlx5: Fix list_del of empty list
For archs with pages size of 4K, when the chunk is freed, fwp is not in the
list so avoid attempting to delete it.
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c index ba816c25c5c1..37b6ad1f9a1b 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c @@ -229,7 +229,8 @@ static void free_4k(struct mlx5_core_dev *dev, u64 addr) set_bit(n, &fwp->bitmask); if (fwp->free_count == MLX5_NUM_4K_IN_PAGE) { rb_erase(&fwp->rb_node, &dev->priv.page_root); - list_del(&fwp->list); + if (fwp->free_count != 1) + list_del(&fwp->list); dma_unmap_page(&dev->pdev->dev, addr, PAGE_SIZE, DMA_BIDIRECTIONAL); __free_page(fwp->page); kfree(fwp); |