FAILED: patch "[PATCH] soundwire: debugfs: use controller id instead of link_id" failed to apply to 5.4-stable tree

The patch below does not apply to the 5.4-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 6d5e7af1f6f5924de5dd1ebe97675c2363100878 Mon Sep 17 00:00:00 2001
From: Srinivas Kandagatla <[email protected]>
Date: Fri, 15 Jan 2021 16:25:59 +0000
Subject: [PATCH] soundwire: debugfs: use controller id instead of link_id

link_id can be zero and if we have multiple controller instances in a system like Qualcomm debugfs will end-up with duplicate namespace resulting in incorrect debugfs entries.

Using id should give a unique debugfs directory entry and should fix below warning too.
"debugfs: Directory 'master-0' with parent 'soundwire' already present!"

index b6cad0d59b7b..5f9efa42bb25 100644
@@ -19,7 +19,7 @@ void sdw_bus_debugfs_init(struct sdw_bus *bus)
 		return;
 
 	/* create the debugfs master-N */
-	snprintf(name, sizeof(name), "master-%d", bus->link_id);
+	snprintf(name, sizeof(name), "master-%d", bus->id);
 	bus->debugfs = debugfs_create_dir(name, sdw_debugfs_root);
 }