net/mlx5e: kTLS, Fix leak on resync error flow

Resync progress params buffer and dma weren't released on error,
Add missing error unwinding for resync_post_get_progress_params().

Fixes: d92bf3a50da0 ("net/mlx5e: kTLS, Add kTLS RX resync support")
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_rx.c
index fb4e4f2ebe02816d5feb5590588790f8b0bef365..e85411bd1fed32bf0583546ceb478e1c20437791 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_rx.c
@@ -258,7 +258,7 @@ resync_post_get_progress_params(struct mlx5e_icosq *sq,
                                       PROGRESS_PARAMS_PADDED_SIZE, DMA_FROM_DEVICE);
        if (unlikely(dma_mapping_error(pdev, buf->dma_addr))) {
                err = -ENOMEM;
-               goto err_out;
+               goto err_free;
        }
 
        buf->priv_rx = priv_rx;
@@ -266,7 +266,7 @@ resync_post_get_progress_params(struct mlx5e_icosq *sq,
        BUILD_BUG_ON(MLX5E_KTLS_GET_PROGRESS_WQEBBS != 1);
        if (unlikely(!mlx5e_wqc_has_room_for(&sq->wq, sq->cc, sq->pc, 1))) {
                err = -ENOSPC;
-               goto err_out;
+               goto err_dma_unmap;
        }
 
        pi = mlx5e_icosq_get_next_pi(sq, 1);
@@ -297,6 +297,10 @@ resync_post_get_progress_params(struct mlx5e_icosq *sq,
 
        return cseg;
 
+err_dma_unmap:
+       dma_unmap_single(pdev, buf->dma_addr, PROGRESS_PARAMS_PADDED_SIZE, DMA_FROM_DEVICE);
+err_free:
+       kfree(buf);
 err_out:
        priv_rx->stats->tls_resync_req_skip++;
        return ERR_PTR(err);