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-rw-r--r--drivers/gpio/gpiolib.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index a7220e04a93e..9ecf93cbd801 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -1792,6 +1792,14 @@ int gpiochip_irqchip_add_domain(struct gpio_chip *gc,
gc->to_irq = gpiochip_to_irq;
gc->irq.domain = domain;
+ /*
+ * Using barrier() here to prevent compiler from reordering
+ * gc->irq.initialized before adding irqdomain.
+ */
+ barrier();
+
+ gc->irq.initialized = true;
+
return 0;
}
EXPORT_SYMBOL_GPL(gpiochip_irqchip_add_domain);