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path: root/drivers/gpio/gpiolib-sysfs.c
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Diffstat (limited to 'drivers/gpio/gpiolib-sysfs.c')
-rw-r--r--drivers/gpio/gpiolib-sysfs.c22
1 files changed, 15 insertions, 7 deletions
diff --git a/drivers/gpio/gpiolib-sysfs.c b/drivers/gpio/gpiolib-sysfs.c
index af3bc7a8033b..b2b62cc6f9e1 100644
--- a/drivers/gpio/gpiolib-sysfs.c
+++ b/drivers/gpio/gpiolib-sysfs.c
@@ -195,20 +195,28 @@ static int gpio_setup_irq(struct gpio_desc *desc, struct device *dev,
}
}
- ret = request_any_context_irq(irq, gpio_sysfs_irq, irq_flags,
- "gpiolib", value_sd);
+ /*
+ * FIXME: This should be done in the irq_request_resources callback
+ * when the irq is requested, but a few drivers currently fail
+ * to do so.
+ *
+ * Remove this redundant call (along with the corresponding
+ * unlock) when those drivers have been fixed.
+ */
+ ret = gpiochip_lock_as_irq(desc->chip, gpio_chip_hwgpio(desc));
if (ret < 0)
goto free_id;
- ret = gpiochip_lock_as_irq(desc->chip, gpio_chip_hwgpio(desc));
- if (ret < 0) {
- gpiod_warn(desc, "failed to flag the GPIO for IRQ\n");
- goto free_id;
- }
+ ret = request_any_context_irq(irq, gpio_sysfs_irq, irq_flags,
+ "gpiolib", value_sd);
+ if (ret < 0)
+ goto err_unlock;
desc->flags |= gpio_flags;
return 0;
+err_unlock:
+ gpiochip_unlock_as_irq(desc->chip, gpio_chip_hwgpio(desc));
free_id:
idr_remove(&dirent_idr, id);
desc->flags &= GPIO_FLAGS_MASK;