From 3bae4811fb6d0b2849e3129abaf9c116f956c7a3 Mon Sep 17 00:00:00 2001 From: Zhangfei Gao Date: Sun, 9 Jun 2013 11:08:32 +0800 Subject: [PATCH] gpiolib: remove warnning of allocations with IRQs disabled Move of_gpiochip_add outof spin_lock, since kzalloc inside of_gpiochip_add -> of_gpiochip_add_pin_range -> gpiochip_add_pin_range -> kzalloc WARNING: at kernel/lockdep.c:2740 lockdep_trace_alloc+0xf8/0xfc() DEBUG_LOCKS_WARN_ON(irqs_disabled_flags(flags)) Signed-off-by: Zhangfei Gao Signed-off-by: Linus Walleij --- drivers/gpio/gpiolib.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index c2534d62911c..ff0fd655729f 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -1214,15 +1214,14 @@ int gpiochip_add(struct gpio_chip *chip) } } + spin_unlock_irqrestore(&gpio_lock, flags); + #ifdef CONFIG_PINCTRL INIT_LIST_HEAD(&chip->pin_ranges); #endif of_gpiochip_add(chip); -unlock: - spin_unlock_irqrestore(&gpio_lock, flags); - if (status) goto fail; @@ -1235,6 +1234,9 @@ unlock: chip->label ? : "generic"); return 0; + +unlock: + spin_unlock_irqrestore(&gpio_lock, flags); fail: /* failures here can mean systems won't boot... */ pr_err("gpiochip_add: gpios %d..%d (%s) failed to register\n", -- 2.39.5