Patch "mips/pic32/pic32mzda: Fix refcount leak bugs" has been added to the 4.9-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    mips/pic32/pic32mzda: Fix refcount leak bugs

to the 4.9-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     mips-pic32-pic32mzda-fix-refcount-leak-bugs.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit ebbab11defed7127dbf9a060f088c08cad67f455
Author: Liang He <windhl@xxxxxxx>
Date:   Sun Jun 19 12:54:27 2022 +0800

    mips/pic32/pic32mzda: Fix refcount leak bugs
    
    [ Upstream commit eb9e9bc4fa5fb489c92ec588b3fb35f042ba6d86 ]
    
    of_find_matching_node(), of_find_compatible_node() and
    of_find_node_by_path() will return node pointers with refcout
    incremented. We should call of_node_put() when they are not
    used anymore.
    
    Signed-off-by: Liang He <windhl@xxxxxxx>
    Signed-off-by: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/arch/mips/pic32/pic32mzda/init.c b/arch/mips/pic32/pic32mzda/init.c
index 406c6c5cec29..f8985d4573e6 100644
--- a/arch/mips/pic32/pic32mzda/init.c
+++ b/arch/mips/pic32/pic32mzda/init.c
@@ -131,13 +131,18 @@ static int __init pic32_of_prepare_platform_data(struct of_dev_auxdata *lookup)
 		np = of_find_compatible_node(NULL, NULL, lookup->compatible);
 		if (np) {
 			lookup->name = (char *)np->name;
-			if (lookup->phys_addr)
+			if (lookup->phys_addr) {
+				of_node_put(np);
 				continue;
+			}
 			if (!of_address_to_resource(np, 0, &res))
 				lookup->phys_addr = res.start;
+			of_node_put(np);
 		}
 	}
 
+	of_node_put(root);
+
 	return 0;
 }
 
diff --git a/arch/mips/pic32/pic32mzda/time.c b/arch/mips/pic32/pic32mzda/time.c
index 62a0a78b6c64..bfafe241c1b5 100644
--- a/arch/mips/pic32/pic32mzda/time.c
+++ b/arch/mips/pic32/pic32mzda/time.c
@@ -40,6 +40,9 @@ static unsigned int pic32_xlate_core_timer_irq(void)
 		goto default_map;
 
 	irq = irq_of_parse_and_map(node, 0);
+
+	of_node_put(node);
+
 	if (!irq)
 		goto default_map;