Received-SPF: softfail (google.com: domain of transitioning linux-bluetooth-owner@vger.kernel.org does not designate 23.128.96.19 as permitted sender) client-ip=23.128.96.19;
From:   Ildar Kamaletdinov <i.kamaletdinov@omp.ru>
To:     <linux-bluetooth@vger.kernel.org>
CC:     Ildar Kamaletdinov <i.kamaletdinov@omp.ru>
Subject: [PATCH BlueZ 4/4] device: Fix uninitialized value usage
Date:   Sat, 7 May 2022 20:35:05 +0300
Message-ID: <20220507173505.31249-5-i.kamaletdinov@omp.ru>
In-Reply-To: <20220507173505.31249-1-i.kamaletdinov@omp.ru>
References: <20220507173505.31249-1-i.kamaletdinov@omp.ru>
MIME-Version: 1.0
Content-Transfer-Encoding: 7BIT
Content-Type:   text/plain; charset=US-ASCII
Precedence: bulk

Definitely `dbus_bool_t b;` must be initialized before comparing it
with current value.

Found by Linux Verification Center (linuxtesting.org) with the SVACE
static analysis tool.
---
 src/device.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/device.c b/src/device.c
index 6da5c380b..7114e1b3e 100644
--- a/src/device.c
+++ b/src/device.c
@@ -1568,6 +1568,8 @@ static void dev_property_set_wake_allowed(const GDBusPropertyTable *property,
 		return;
 	}
 
+	dbus_message_iter_get_basic(value, &b);
+
 	/* Emit busy or success depending on current value. */
 	if (b == device->pending_wake_allowed) {
 		if (device->wake_allowed == device->pending_wake_allowed)
@@ -1580,7 +1582,6 @@ static void dev_property_set_wake_allowed(const GDBusPropertyTable *property,
 		return;
 	}
 
-	dbus_message_iter_get_basic(value, &b);
 	device_set_wake_override(device, b);
 	device_set_wake_allowed(device, b, id);
 }
-- 
2.35.3