From: Dotan Barak Date: Thu, 25 Oct 2012 01:12:49 +0000 (+0000) Subject: net/mlx4_core: Unmap UAR also in the case of error flow X-Git-Tag: firefly_0821_release~3680^2~1707^2~4 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=bfc0d8c3de31a51e671e2c1564fd194fa6b00179;p=firefly-linux-kernel-4.4.55.git net/mlx4_core: Unmap UAR also in the case of error flow If a failure takes place during the EQ creation, we need to unmap the UAR memory block too. Signed-off-by: Dotan Barak Signed-off-by: Uri Habusha Signed-off-by: Or Gerlitz Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/mellanox/mlx4/eq.c b/drivers/net/ethernet/mellanox/mlx4/eq.c index 51c764901ad2..083767b55c8c 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);