[PATCH net 3/3] net/mlx4_core: Unmap UAR also in the case of error flow
flat view
STALE5104d
From: Or Gerlitz <hidden>
Date: 2012-10-25 11:12:59
Subsystem:
mellanox mlx4 core vpi driver, networking drivers, the rest · Maintainers:
Tariq Toukan, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Revision v1 of 2 in this series.
Revisions (2)
- v1 current
- v1
From: Dotan Barak <redacted> If a failure takes place during the EQ creation, we need to unmap the UAR memory block too. Signed-off-by: Dotan Barak <redacted> Signed-off-by: Uri Habusha <redacted> Signed-off-by: Or Gerlitz <redacted> --- drivers/net/ethernet/mellanox/mlx4/eq.c | 18 ++++++++++++++---- 1 files changed, 14 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx4/eq.c b/drivers/net/ethernet/mellanox/mlx4/eq.c
index 51c7649..083767b 100644
--- a/drivers/net/ethernet/mellanox/mlx4/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx4/eq.c@@ -843,6 +843,18 @@ static void __iomem *mlx4_get_eq_uar(struct mlx4_dev *dev, struct mlx4_eq *eq) return priv->eq_table.uar_map[index] + 0x800 + 8 * (eq->eqn % 4); } +static void mlx4_unmap_uar(struct mlx4_dev *dev) +{ + struct mlx4_priv *priv = mlx4_priv(dev); + int i; + + for (i = 0; i < mlx4_num_eq_uar(dev); ++i) + if (priv->eq_table.uar_map[i]) { + iounmap(priv->eq_table.uar_map[i]); + priv->eq_table.uar_map[i] = NULL; + } +} + static int mlx4_create_eq(struct mlx4_dev *dev, int nent, u8 intr, struct mlx4_eq *eq) {
@@ -1207,6 +1219,7 @@ err_out_unmap: mlx4_free_irqs(dev); err_out_bitmap: + mlx4_unmap_uar(dev); mlx4_bitmap_cleanup(&priv->eq_table.bitmap); err_out_free:
@@ -1231,10 +1244,7 @@ void mlx4_cleanup_eq_table(struct mlx4_dev *dev) if (!mlx4_is_slave(dev)) mlx4_unmap_clr_int(dev); - for (i = 0; i < mlx4_num_eq_uar(dev); ++i) - if (priv->eq_table.uar_map[i]) - iounmap(priv->eq_table.uar_map[i]); - + mlx4_unmap_uar(dev); mlx4_bitmap_cleanup(&priv->eq_table.bitmap); kfree(priv->eq_table.uar_map);
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1.7.1