Merge tag 'thunderbolt-for-v6.11-rc3' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt into usb-linus

thunderbolt: Fixes for v6.11-rc3

This includes following USB4/Thunderbolt fixes for v6.11-rc3:

  - Fix memory leak in debugfs sideband register access
  - Fix hang when host router NVM is upgraded and there is another host
    connected.

Both have been in linux-next with no reported issues.

* tag 'thunderbolt-for-v6.11-rc3' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt:
  thunderbolt: Mark XDomain as unplugged when router is removed
  thunderbolt: Fix memory leaks in {port|retimer}_sb_regs_write()

2 files changed, 7 insertions, 4 deletions

diff --git a/drivers/thunderbolt/debugfs.c b/drivers/thunderbolt/debugfs.c
index 11185cc1db92..9ed4bb2e8d05 100644
--- a/drivers/thunderbolt/debugfs.c
+++ b/drivers/thunderbolt/debugfs.c
@@ -323,16 +323,17 @@ static ssize_t port_sb_regs_write(struct file *file, const char __user *user_buf
 
 	if (mutex_lock_interruptible(&tb->lock)) {
 		ret = -ERESTARTSYS;
-		goto out_rpm_put;
+		goto out;
 	}
 
 	ret = sb_regs_write(port, port_sb_regs, ARRAY_SIZE(port_sb_regs),
 			    USB4_SB_TARGET_ROUTER, 0, buf, count, ppos);
 
 	mutex_unlock(&tb->lock);
-out_rpm_put:
+out:
 	pm_runtime_mark_last_busy(&sw->dev);
 	pm_runtime_put_autosuspend(&sw->dev);
+	free_page((unsigned long)buf);
 
 	return ret < 0 ? ret : count;
 }
@@ -355,16 +356,17 @@ static ssize_t retimer_sb_regs_write(struct file *file,
 
 	if (mutex_lock_interruptible(&tb->lock)) {
 		ret = -ERESTARTSYS;
-		goto out_rpm_put;
+		goto out;
 	}
 
 	ret = sb_regs_write(rt->port, retimer_sb_regs, ARRAY_SIZE(retimer_sb_regs),
 			    USB4_SB_TARGET_RETIMER, rt->index, buf, count, ppos);
 
 	mutex_unlock(&tb->lock);
-out_rpm_put:
+out:
 	pm_runtime_mark_last_busy(&rt->dev);
 	pm_runtime_put_autosuspend(&rt->dev);
+	free_page((unsigned long)buf);
 
 	return ret < 0 ? ret : count;
 }
diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c
index 326433df5880..6a2116cbb06f 100644
--- a/drivers/thunderbolt/switch.c
+++ b/drivers/thunderbolt/switch.c
@@ -3392,6 +3392,7 @@ void tb_switch_remove(struct tb_switch *sw)
 			tb_switch_remove(port->remote->sw);
 			port->remote = NULL;
 		} else if (port->xdomain) {
+			port->xdomain->is_unplugged = true;
 			tb_xdomain_remove(port->xdomain);
 			port->xdomain = NULL;
 		}