From: Vladimir Zapolskiy <vz@mleia.com>
Date: Thu, 21 Dec 2017 16:37:35 +0000 (+0200)
Subject: gpiolib: add desc validation to gpiod_set_transitory()
X-Git-Tag: v5.15~9534^2~27
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=156dd39219b159d03762af32f1a0acd05d0cd726;p=platform%2Fkernel%2Flinux-starfive.git

gpiolib: add desc validation to gpiod_set_transitory()

The gpiod_set_transitory() function is publicly exported, and
it is expected from it to be ready for usage with optional GPIOs
on consumer's side.

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index c23cc6b..7dde703b 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -2526,6 +2526,7 @@ int gpiod_set_transitory(struct gpio_desc *desc, bool transitory)
 	int gpio;
 	int rc;
 
+	VALIDATE_DESC(desc);
 	/*
 	 * Handle FLAG_TRANSITORY first, enabling queries to gpiolib for
 	 * persistence state.