From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Fri, 1 Sep 2023 08:32:17 +0000 (+0300)
Subject: thunderbolt: Check for unplugged router in tb_switch_clx_disable()
X-Git-Tag: block-6.7-2023-11-10~25^2~11^2~20
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=9e4f5b2af24297552017dd3d4db2379779701b6f;p=linux-block.git

thunderbolt: Check for unplugged router in tb_switch_clx_disable()

There is no point disabling CL states if the router is unplugged so in
that case return early.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---

diff --git a/drivers/thunderbolt/clx.c b/drivers/thunderbolt/clx.c
index c08b9cf0371e..787dfd1550e5 100644
--- a/drivers/thunderbolt/clx.c
+++ b/drivers/thunderbolt/clx.c
@@ -405,6 +405,9 @@ int tb_switch_clx_disable(struct tb_switch *sw)
 	if (!clx)
 		return 0;
 
+	if (sw->is_unplugged)
+		return clx;
+
 	up = tb_upstream_port(sw);
 	down = tb_switch_downstream_port(sw);