a7y18lte-ubports/android_kernel_samsung_universal7885
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gpiolib: remove warnning of allocations with IRQs disabled

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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 <zhangfei.gao@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Zhangfei Gao 2013-06-09 11:08:32 +08:00 committed by Linus Walleij
parent 61e3884ec1
commit 3bae4811fb
1 changed files with 5 additions and 3 deletions
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8
drivers/gpio/gpiolib.c
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@ -1214,15 +1214,14 @@ int gpiochip_add(struct gpio_chip *chip)
} }
} }
spin_unlock_irqrestore(&gpio_lock, flags);
#ifdef CONFIG_PINCTRL #ifdef CONFIG_PINCTRL
INIT_LIST_HEAD(&chip->pin_ranges); INIT_LIST_HEAD(&chip->pin_ranges);
#endif #endif
of_gpiochip_add(chip); of_gpiochip_add(chip);
unlock:
spin_unlock_irqrestore(&gpio_lock, flags);
if (status) if (status)
goto fail; goto fail;
@ -1235,6 +1234,9 @@ unlock:
chip->label ? : "generic"); chip->label ? : "generic");
return 0; return 0;
unlock:
spin_unlock_irqrestore(&gpio_lock, flags);
fail: fail:
/* failures here can mean systems won't boot... */ /* failures here can mean systems won't boot... */
pr_err("gpiochip_add: gpios %d..%d (%s) failed to register\n", pr_err("gpiochip_add: gpios %d..%d (%s) failed to register\n",