platform/x86: pcengines-apuv2: Add missing terminating entries to gpio-lookup tables

[ Upstream commit 9d7b132e62e41b7d49bf157aeaf9147c27492e0f ]

The gpiod_lookup_table.table passed to gpiod_add_lookup_table() must
be terminated with an empty entry, add this.

Note we have likely been getting away with this not being present because
the GPIO lookup code first matches on the dev_id, causing most lookups to
skip checking the table and the lookups which do check the table will
find a matching entry before reaching the end. With that said, terminating
these tables properly still is obviously the correct thing to do.

Fixes: f8eb0235f659 ("x86: pcengines apuv2 gpio/leds/keys platform driver")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210806115515.12184-1-hdegoede@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/platform/x86/pcengines-apuv2.c b/drivers/platform/x86/pcengines-apuv2.c
index c37349f97bb804b9dda638f3faf90e46030ecb0b..d063d91db9bcbe5ceb2ac641d3105df37651ac4d 100644 (file)
--- a/drivers/platform/x86/pcengines-apuv2.c
+++ b/drivers/platform/x86/pcengines-apuv2.c
@@ -94,6 +94,7 @@ static struct gpiod_lookup_table gpios_led_table = {
                                NULL, 1, GPIO_ACTIVE_LOW),
                GPIO_LOOKUP_IDX(AMD_FCH_GPIO_DRIVER_NAME, APU2_GPIO_LINE_LED3,
                                NULL, 2, GPIO_ACTIVE_LOW),
+               {} /* Terminating entry */
        }
 };
 
@@ -123,6 +124,7 @@ static struct gpiod_lookup_table gpios_key_table = {
        .table = {
                GPIO_LOOKUP_IDX(AMD_FCH_GPIO_DRIVER_NAME, APU2_GPIO_LINE_MODESW,
                                NULL, 0, GPIO_ACTIVE_LOW),
+               {} /* Terminating entry */
        }
 };