The patch below does not apply to the 4.19-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 stable@vger.kernel.org.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 975435132ecfef8de2118668c9f4f95086a0aae5 Mon Sep 17 00:00:00 2001

From: Claudiu Beznea claudiu.beznea@microchip.com Date: Fri, 22 Jan 2021 14:21:34 +0200 Subject: [PATCH] drivers: soc: atmel: add null entry at the end of at91_soc_allowed_list[]

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@vger.kernel.org #4.12+ Signed-off-by: Claudiu Beznea claudiu.beznea@microchip.com Signed-off-by: Arnd Bergmann arnd@arndb.de Signed-off-by: Nicolas Ferre nicolas.ferre@microchip.com

diff --git a/drivers/soc/atmel/soc.c b/drivers/soc/atmel/soc.c index 728d461ad6d6..698d21f50516 100644 --- a/drivers/soc/atmel/soc.c +++ b/drivers/soc/atmel/soc.c @@ -275,7 +275,8 @@ static const struct of_device_id at91_soc_allowed_list[] __initconst = { { .compatible = "atmel,at91rm9200", }, { .compatible = "atmel,at91sam9", }, { .compatible = "atmel,sama5", }, - { .compatible = "atmel,samv7", } + { .compatible = "atmel,samv7", }, + { } };

static int __init atmel_soc_device_init(void)