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From: Christian Eggers <ceggers@arri.de>
To: <linux-bluetooth@vger.kernel.org>
Cc: Christian Eggers <ceggers@arri.de>
Subject: [PATCH BlueZ 9/9] battery: provided_battery_property_changed_cb: check for NULL iterator
Date: Fri, 23 Sep 2022 12:27:27 +0200	[thread overview]
Message-ID: <20220923102727.10636-1-ceggers@arri.de> (raw)
In-Reply-To: <20220923102421.10336-1-ceggers@arri.de>

The passed iterator can be NULL as in
gdbus/client.c::properties_changed():
...
   proxy->prop_func(..., ..., iter=NULL, ...)
   +--src/battery.c::provided_battery_property_changed_cb(, , iter, );
      +--dbus_message_iter_get_arg_type(iter);
...
---
 src/battery.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/battery.c b/src/battery.c
index 77fee22b6e61..88a53e80e890 100644
--- a/src/battery.c
+++ b/src/battery.c
@@ -252,7 +252,7 @@ static void provided_battery_property_changed_cb(GDBusProxy *proxy,
 						 DBusMessageIter *iter,
 						 void *user_data)
 {
-	uint8_t percentage;
+	uint8_t percentage = 0;
 	const char *export_path;
 	DBusMessageIter dev_iter;
 
@@ -264,10 +264,12 @@ static void provided_battery_property_changed_cb(GDBusProxy *proxy,
 	if (strcmp(name, "Percentage") != 0)
 		return;
 
-	if (dbus_message_iter_get_arg_type(iter) != DBUS_TYPE_BYTE)
-		return;
+	if (iter) {
+		if (dbus_message_iter_get_arg_type(iter) != DBUS_TYPE_BYTE)
+			return;
 
-	dbus_message_iter_get_basic(iter, &percentage);
+		dbus_message_iter_get_basic(iter, &percentage);
+	}
 
 	DBG("battery percentage changed on %s, percentage = %d",
 	    g_dbus_proxy_get_path(proxy), percentage);
-- 
2.35.3


      parent reply	other threads:[~2022-09-23 10:28 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-23 10:24 [PATCH BlueZ 0/9] properties_changed: check for NULL iterator Christian Eggers
2022-09-23 10:24 ` [PATCH BlueZ 1/9] advertising: parse_secondary: fix loop condition Christian Eggers
2022-09-23 11:21   ` properties_changed: check for NULL iterator bluez.test.bot
2022-09-23 10:24 ` [PATCH BlueZ 2/9] advertising: parse_secondary: fix mask value Christian Eggers
2022-09-23 10:24 ` [PATCH BlueZ 3/9] advertising: parse_secondary: check for NULL iterator Christian Eggers
2022-09-23 10:24 ` [PATCH BlueZ 4/9] advertising: parse_min_interval: reset min_interval if iter is NULL Christian Eggers
2022-09-23 10:26 ` Christian Eggers
2022-09-23 20:50   ` patchwork-bot+bluetooth
2022-09-23 10:26 ` [PATCH BlueZ 5/9] advertising: parse_[min|max]_interval: reset value " Christian Eggers
2022-09-23 10:26 ` [PATCH BlueZ 6/9] advertising: parse_tx_power: " Christian Eggers
2022-09-23 10:26 ` [PATCH BlueZ 7/9] client/gatt: proxy_property_changed: check for NULL iterator Christian Eggers
2022-09-23 10:27 ` [PATCH BlueZ 8/9] gatt: " Christian Eggers
2022-09-23 10:27 ` Christian Eggers [this message]

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