From: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Date: Mon, 18 May 2026 09:53:18 +0000 (+0200)
Subject: gpio: aggregator: lock device when calling device_is_bound()
X-Git-Tag: v7.1-rc5~26^2~1
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=598a2b3e2e0e6aa2e9f7843c96c45b5ea11e0411;p=thirdparty%2Fkernel%2Flinux.git

gpio: aggregator: lock device when calling device_is_bound()

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")
Link: https://patch.msgid.link/20260518-gpio-dev-lock-v1-2-cc4736f3ff0b@oss.qualcomm.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
---

diff --git a/drivers/gpio/gpio-aggregator.c b/drivers/gpio/gpio-aggregator.c
index a9ad809708fb6..bc6699a821ee7 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;