linux-kernel - [PATCH v7 01/39] ARM: ep93xx: Add terminator to gpiod_lookup

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Date: Thu, 18 Jan 2024 11:20:44 +0300
From:
 Nikita Shubin via B4 Relay <devnull+nikita.shubin.maquefel.me@...nel.org>
To: Hartley Sweeten <hsweeten@...ionengravers.com>, 
 Alexander Sverdlin <alexander.sverdlin@...il.com>, 
 Russell King <linux@...linux.org.uk>, "Wu, Aaron" <Aaron.Wu@...log.com>, 
 Olof Johansson <olof@...om.net>, Lee Jones <lee@...nel.org>, 
 Ralf Baechle <ralf@...ux-mips.org>, 
 Linus Walleij <linus.walleij@...aro.org>
Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 Arnd Bergmann <arnd@...db.de>, 
 Andy Shevchenko <andriy.shevchenko@...el.com>
Subject: [PATCH v7 01/39] ARM: ep93xx: Add terminator to gpiod_lookup_table

From: Nikita Shubin <nikita.shubin@...uefel.me>

Without the terminator, if a con_id is passed to gpio_find() that
does not exist in the lookup table the function will not stop looping
correctly, and eventually cause an oops.

Fixes: b2e63555592f ("i2c: gpio: Convert to use descriptors")
Reported-by: Andy Shevchenko <andriy.shevchenko@...el.com>
Signed-off-by: Nikita Shubin <nikita.shubin@...uefel.me>
---
 arch/arm/mach-ep93xx/core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-ep93xx/core.c b/arch/arm/mach-ep93xx/core.c
index 71b113976420..8b1ec60a9a46 100644
--- a/arch/arm/mach-ep93xx/core.c
+++ b/arch/arm/mach-ep93xx/core.c
@@ -339,6 +339,7 @@ static struct gpiod_lookup_table ep93xx_i2c_gpiod_table = {
 				GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
 		GPIO_LOOKUP_IDX("G", 0, NULL, 1,
 				GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
+		{ }
 	},
 };
 

-- 
2.41.0