[PATCH v2 1/2] gpiolib: Return label, if set, for IRQ only line

[Andy Shevchenko <andriy.shevchenko@linux.intel.com>]

If line has been locked as IRQ without requesting,
still check its label and return it, if not NULL.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/gpio/gpiolib.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 73c9f99d141e..a6032b84ba98 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -107,16 +107,16 @@ const char *gpiod_get_label(struct gpio_desc *desc)
 	unsigned long flags;
 
 	flags = READ_ONCE(desc->flags);
-	if (test_bit(FLAG_USED_AS_IRQ, &flags) &&
-	    !test_bit(FLAG_REQUESTED, &flags))
-		return "interrupt";
-
-	if (!test_bit(FLAG_REQUESTED, &flags))
-		return NULL;
 
 	label = srcu_dereference_check(desc->label, &desc->gdev->desc_srcu,
 				srcu_read_lock_held(&desc->gdev->desc_srcu));
 
+	if (test_bit(FLAG_USED_AS_IRQ, &flags))
+		return label->str ?: "interrupt";
+
+	if (!test_bit(FLAG_REQUESTED, &flags))
+		return NULL;
+
 	return label->str;
 }
 
-- 
2.43.0.rc1.1336.g36b5255a03ac