D42368.id129478.diff
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D42368.id129478.diff
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	diff --git a/sys/dev/mlx5/mlx5_core/mlx5_fs_tree.c b/sys/dev/mlx5/mlx5_core/mlx5_fs_tree.c
	--- a/sys/dev/mlx5/mlx5_core/mlx5_fs_tree.c
	+++ b/sys/dev/mlx5/mlx5_core/mlx5_fs_tree.c
	@@ -229,14 +229,19 @@
	{
	struct fs_base *node = container_of(kref, struct fs_base, refcount);

	- if (node->parent)
	+ if (node->parent) {
	+ if (node->type == FS_TYPE_FLOW_DEST)
	+ mutex_lock(&node->parent->parent->lock);
	mutex_lock(&node->parent->lock);
	+ }
	mutex_lock(&node->lock);
	cmd_remove_node(node);
	mutex_unlock(&node->lock);
	complete(&node->complete);
	if (node->parent) {
	mutex_unlock(&node->parent->lock);
	+ if (node->type == FS_TYPE_FLOW_DEST)
	+ mutex_unlock(&node->parent->parent->lock);
	_fs_put(node->parent, _fs_remove_node, false);
	}
	}
	@@ -1694,7 +1699,6 @@

	fs_get_parent(fte, dst);
	fs_get_parent(fg, fte);
	- mutex_lock(&fg->base.lock);
	memcpy(match_value, fte->val, sizeof(fte->val));
	/* ft can't be changed as fg is locked */
	fs_get_parent(ft, fg);
	@@ -1714,7 +1718,6 @@
	}
	call_to_del_rule_notifiers(dst, fte);
	err:
	- mutex_unlock(&fg->base.lock);
	kvfree(match_value);
	}