net/mlx5: Fix read from coherent memory

[sfrench/cifs-2.6.git] / drivers / net / ethernet / mellanox / mlx5 / core / cmd.c

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
index 3ce14d42ddc8984eecc2c19cb73f8d379b7f6498..a53736c26c0cec416b119878356e2beffe17b37e 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
@@ -206,7 +206,7 @@ static void poll_timeout(struct mlx5_cmd_work_ent *ent)
        u8 own;
 
        do {
-               own = ent->lay->status_own;
+               own = READ_ONCE(ent->lay->status_own);
                if (!(own & CMD_OWNER_HW)) {
                        ent->ret = 0;
                        return;