git: d2a788a522f7 - main - mlx5en: Add missing refcount decrement on link-down.

[Hans Petter Selasky]

The branch main has been updated by hselasky:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=d2a788a522f78f7c4b014df9097348419d90fae4

commit d2a788a522f78f7c4b014df9097348419d90fae4
Author:     Hans Petter Selasky <hsela...@freebsd.org>
AuthorDate: 2022-02-17 11:45:25 +0000
Commit:     Hans Petter Selasky <hsela...@freebsd.org>
CommitDate: 2022-02-17 12:13:09 +0000

    mlx5en: Add missing refcount decrement on link-down.
    
    MFC after:      1 week
    Sponsored by:   NVIDIA Networking
---
 sys/dev/mlx5/mlx5_en/mlx5_en_iq.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sys/dev/mlx5/mlx5_en/mlx5_en_iq.c 
b/sys/dev/mlx5/mlx5_en/mlx5_en_iq.c
index e375864dc85f..6553b002aa1b 100644
--- a/sys/dev/mlx5/mlx5_en/mlx5_en_iq.c
+++ b/sys/dev/mlx5/mlx5_en/mlx5_en_iq.c
@@ -141,6 +141,10 @@ mlx5e_iq_free_db(struct mlx5e_iq *iq)
                        iq->data[x].callback(iq->data[x].arg);
                        iq->data[x].callback = NULL;
                }
+               if (unlikely(iq->data[x].p_refcount != NULL)) {
+                       atomic_add_int(iq->data[x].p_refcount, -1);
+                       iq->data[x].p_refcount = NULL;
+               }
                bus_dmamap_destroy(iq->dma_tag, iq->data[x].dma_map);
        }
        free(iq->data, M_MLX5EN);