From 767cd17a5cc5ce2d5342f5c4bd6c5d36b812c7a7 Mon Sep 17 00:00:00 2001 From: Ricardo Ribalda Delgado Date: Fri, 12 Oct 2018 08:11:36 +0200 Subject: [PATCH] gpiolib: Initialize gdev field before is used gpio_hog depends on gdev field being initialized. This patch fixes an OOPs during initialization of TI's AM335x-ICEv2. Fixes: 3edfb7bd76bd1cba ("gpiolib: Show correct direction from the beginning") Tested-by: Vignesh R Signed-off-by: Ricardo Ribalda Delgado Signed-off-by: Linus Walleij --- drivers/gpio/gpiolib.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 76ade1a..1a283fb 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -1351,6 +1351,9 @@ int gpiochip_add_data_with_key(struct gpio_chip *chip, void *data, spin_unlock_irqrestore(&gpio_lock, flags); + for (i = 0; i < chip->ngpio; i++) + gdev->descs[i].gdev = gdev; + #ifdef CONFIG_PINCTRL INIT_LIST_HEAD(&gdev->pin_ranges); #endif @@ -1382,8 +1385,6 @@ int gpiochip_add_data_with_key(struct gpio_chip *chip, void *data, for (i = 0; i < chip->ngpio; i++) { struct gpio_desc *desc = &gdev->descs[i]; - desc->gdev = gdev; - if (chip->get_direction && gpiochip_line_is_valid(chip, i)) desc->flags = !chip->get_direction(chip, i) ? (1 << FLAG_IS_OUT) : 0; -- 2.7.4