Patch "ARM: shmobile: rcar-gen2: Increase refcount for new reference" has been added to the 5.10-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

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

    ARM: shmobile: rcar-gen2: Increase refcount for new reference

to the 5.10-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:
     arm-shmobile-rcar-gen2-increase-refcount-for-new-ref.patch
and it can be found in the queue-5.10 subdirectory.

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



commit 3d326d5ecdb544e46ca5ea40cbb08c1a57d32cdb
Author: Liang He <windhl@xxxxxxx>
Date:   Fri Jul 1 20:18:04 2022 +0800

    ARM: shmobile: rcar-gen2: Increase refcount for new reference
    
    [ Upstream commit 75a185fb92e58ccd3670258d8d3b826bd2fa6d29 ]
    
    In rcar_gen2_regulator_quirk(), for_each_matching_node_and_match() will
    automatically increase and decrease the refcount.  However, we should
    call of_node_get() for the new reference created in 'quirk->np'.
    Besides, we also should call of_node_put() before the 'quirk' being
    freed.
    
    Signed-off-by: Liang He <windhl@xxxxxxx>
    Link: https://lore.kernel.org/r/20220701121804.234223-1-windhl@xxxxxxx
    Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c b/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c
index 09ef73b99dd8..ba44cec5e59a 100644
--- a/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c
+++ b/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c
@@ -125,6 +125,7 @@ static int regulator_quirk_notify(struct notifier_block *nb,
 
 	list_for_each_entry_safe(pos, tmp, &quirk_list, list) {
 		list_del(&pos->list);
+		of_node_put(pos->np);
 		kfree(pos);
 	}
 
@@ -174,11 +175,12 @@ static int __init rcar_gen2_regulator_quirk(void)
 		memcpy(&quirk->i2c_msg, id->data, sizeof(quirk->i2c_msg));
 
 		quirk->id = id;
-		quirk->np = np;
+		quirk->np = of_node_get(np);
 		quirk->i2c_msg.addr = addr;
 
 		ret = of_irq_parse_one(np, 0, argsa);
 		if (ret) {	/* Skip invalid entry and continue */
+			of_node_put(np);
 			kfree(quirk);
 			continue;
 		}
@@ -225,6 +227,7 @@ static int __init rcar_gen2_regulator_quirk(void)
 err_mem:
 	list_for_each_entry_safe(pos, tmp, &quirk_list, list) {
 		list_del(&pos->list);
+		of_node_put(pos->np);
 		kfree(pos);
 	}