From: Miaoqian Lin linmq006@gmail.com
[ Upstream commit 6b8b42585886c59a008015083282aae434349094 ]
The mlx5_get_uars_page() function returns error pointers. Using IS_ERR() to check the return value to fix this.
Fixes: 4ec9e7b02697 ("net/mlx5: DR, Expose steering domain functionality") Signed-off-by: Miaoqian Lin linmq006@gmail.com Signed-off-by: Saeed Mahameed saeedm@nvidia.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/mellanox/mlx5/core/steering/dr_domain.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_domain.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_domain.c index 00d861361428f..16a7c7ec5e138 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_domain.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_domain.c @@ -2,6 +2,7 @@ /* Copyright (c) 2019 Mellanox Technologies. */
#include <linux/mlx5/eswitch.h> +#include <linux/err.h> #include "dr_types.h"
#define DR_DOMAIN_SW_STEERING_SUPPORTED(dmn, dmn_type) \ @@ -69,9 +70,9 @@ static int dr_domain_init_resources(struct mlx5dr_domain *dmn) }
dmn->uar = mlx5_get_uars_page(dmn->mdev); - if (!dmn->uar) { + if (IS_ERR(dmn->uar)) { mlx5dr_err(dmn, "Couldn't allocate UAR\n"); - ret = -ENOMEM; + ret = PTR_ERR(dmn->uar); goto clean_pd; }