[PATCH 2/3] gpio: aggregator: lock device when calling device_is_bound()

[Bartosz Golaszewski]

The kerneldoc for device_is_bound() says it must be called with the
device lock taken. Add missing synchronization to this driver.

Fixes: 3a27f40b4570 ("gpio: aggregator: stop using dev-sync-probe")
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxxxxxxxx>
---
 drivers/gpio/gpio-aggregator.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/gpio/gpio-aggregator.c b/drivers/gpio/gpio-aggregator.c
index 5915209e1e2168b0932de4d16aff38074b889c2b..3dbccb14216f8450ac0f68abaab693e52b9d1bf4 100644
--- a/drivers/gpio/gpio-aggregator.c
+++ b/drivers/gpio/gpio-aggregator.c
@@ -968,9 +968,12 @@ static int gpio_aggregator_activate(struct gpio_aggregator *aggr)
 	}
 
 	wait_for_device_probe();
-	if (!device_is_bound(&pdev->dev)) {
-		ret = -ENXIO;
-		goto err_unregister_pdev;
+
+	scoped_guard(device, &pdev->dev) {
+		if (!device_is_bound(&pdev->dev)) {
+			ret = -ENXIO;
+			goto err_unregister_pdev;
+		}
 	}
 
 	aggr->pdev = pdev;

-- 
2.47.3