[PATCH] gpiolib: add desc validation to gpiod_set_transitory()

[Vladimir Zapolskiy <vz@xxxxxxxxx>]

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@xxxxxxxxx>
---
 drivers/gpio/gpiolib.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 6e19385..a34ea9d 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -2546,6 +2546,7 @@ 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.
-- 
2.10.2

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