FAILED: patch "[PATCH] pinctrl: samsung: Add of_node_put() before return in error" failed to apply to 4.4-stable tree

The patch below does not apply to the 4.4-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 3d2557ab75d4c568c79eefa2e550e0d80348a6bd Mon Sep 17 00:00:00 2001
From: Nishka Dasgupta <[email protected]>
Date: Sun, 4 Aug 2019 21:32:00 +0530
Subject: [PATCH] pinctrl: samsung: Add of_node_put() before return in error
path

Each iteration of for_each_child_of_node puts the previous node, but in the case of a return from the middle of the loop, there is no put, thus causing a memory leak. Hence add an of_node_put before the return of exynos_eint_wkup_init() error path.
Issue found with Coccinelle.

index ebc27b06718c..e7f4cbad2c92 100644
@@ -486,8 +486,10 @@ int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d)
 		if (match) {
 			irq_chip = kmemdup(match->data,
 				sizeof(*irq_chip), GFP_KERNEL);
-			if (!irq_chip)
+			if (!irq_chip) {
+				of_node_put(np);
 				return -ENOMEM;
+			}
 			wkup_np = np;
 			break;
 		}