linux-kernel - [PATCH 5.4 15/61] drivers: soc: atmel: add null entry at the end of at91_soc_allowed

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Date:   Tue,  2 Feb 2021 14:37:53 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Claudiu Beznea <claudiu.beznea@...rochip.com>,
        Arnd Bergmann <arnd@...db.de>
Subject: [PATCH 5.4 15/61] drivers: soc: atmel: add null entry at the end of at91_soc_allowed_list[]

From: Claudiu Beznea <claudiu.beznea@...rochip.com>

commit 680896556805d3ad3fa47f6002b87b3041a45ac2 upstream.

of_match_node() calls __of_match_node() which loops though the entries of
matches array. It stops when condition:
(matches->name[0] || matches->type[0] || matches->compatible[0]) is
false. Thus, add a null entry at the end of at91_soc_allowed_list[]
array.

Fixes: caab13b49604 ("drivers: soc: atmel: Avoid calling at91_soc_init on non AT91 SoCs")
Cc: stable@...r.kernel.org #4.12+
Signed-off-by: Claudiu Beznea <claudiu.beznea@...rochip.com>
Signed-off-by: Arnd Bergmann <arnd@...db.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/soc/atmel/soc.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/soc/atmel/soc.c
+++ b/drivers/soc/atmel/soc.c
@@ -268,7 +268,8 @@ static const struct of_device_id at91_so
 	{ .compatible = "atmel,at91rm9200", },
 	{ .compatible = "atmel,at91sam9", },
 	{ .compatible = "atmel,sama5", },
-	{ .compatible = "atmel,samv7", }
+	{ .compatible = "atmel,samv7", },
+	{ }
 };
 
 static int __init atmel_soc_device_init(void)