From: jsg <jsg@openbsd.org>
Date: Mon, 5 Aug 2024 02:44:55 +0000 (+0000)
Subject: drm/dp_mst: Fix all mstb marked as not probed after suspend/resume
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=cb2f7175f2932d426dc692053512d29e023c1e2b;p=openbsd

drm/dp_mst: Fix all mstb marked as not probed after suspend/resume

From Wayne Lin
e290feb8b749a06b93ed01d4cf66567cbdf0e85d in linux-6.6.y/6.6.44
d63d81094d208abb20fc444514b2d9ec2f4b7c4e in mainline linux
---

diff --git a/sys/dev/pci/drm/display/drm_dp_mst_topology.c b/sys/dev/pci/drm/display/drm_dp_mst_topology.c
index 778b59616d6..2b77d44f3f4 100644
--- a/sys/dev/pci/drm/display/drm_dp_mst_topology.c
+++ b/sys/dev/pci/drm/display/drm_dp_mst_topology.c
@@ -2933,7 +2933,7 @@ static int drm_dp_send_link_address(struct drm_dp_mst_topology_mgr *mgr,
 
 	/* FIXME: Actually do some real error handling here */
 	ret = drm_dp_mst_wait_tx_reply(mstb, txmsg);
-	if (ret <= 0) {
+	if (ret < 0) {
 		drm_err(mgr->dev, "Sending link address failed with %d\n", ret);
 		goto out;
 	}
@@ -2985,7 +2985,7 @@ static int drm_dp_send_link_address(struct drm_dp_mst_topology_mgr *mgr,
 	mutex_unlock(&mgr->lock);
 
 out:
-	if (ret <= 0)
+	if (ret < 0)
 		mstb->link_address_sent = false;
 	kfree(txmsg);
 	return ret < 0 ? ret : changed;