FAILED: patch "[PATCH] hwmon: (dell-smm) Fix warning on /proc/i8k creation error" failed to apply to 4.9-stable tree

The patch below does not apply to the 4.9-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 dbd3e6eaf3d813939b28e8a66e29d81cdc836445 Mon Sep 17 00:00:00 2001
From: Armin Wolf <[email protected]>
Date: Fri, 12 Nov 2021 18:14:40 +0100
Subject: [PATCH] hwmon: (dell-smm) Fix warning on /proc/i8k creation error
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The removal function is called regardless of whether /proc/i8k was created successfully or not, the later causing a WARN() on module removal.
Fix that by only registering the removal function if /proc/i8k was created successfully.

Tested on a Inspiron 3505.

index eaace478f508..5596c211f38d 100644
@@ -627,10 +627,9 @@ static void __init i8k_init_procfs(struct device *dev)
 {
 	struct dell_smm_data *data = dev_get_drvdata(dev);
 
-	/* Register the proc entry */
-	proc_create_data("i8k", 0, NULL, &i8k_proc_ops, data);
-
-	devm_add_action_or_reset(dev, i8k_exit_procfs, NULL);
+	/* Only register exit function if creation was successful */
+	if (proc_create_data("i8k", 0, NULL, &i8k_proc_ops, data))
+		devm_add_action_or_reset(dev, i8k_exit_procfs, NULL);
 }
 
 #else