From: Daniel Mack <zonque@gmail.com>
Date: Thu, 20 Feb 2014 16:14:50 +0000 (+0100)
Subject: libsystemd: fix compiler warning in property_get_set_callbacks_run()
X-Git-Tag: v210~120
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=c94d7fc3cefa16f6b715d469b7aa93c39c649b3c

libsystemd: fix compiler warning in property_get_set_callbacks_run()

gcc (4.8.2, arm) doesn't understand that vtable_property_get_userdata()
will always set 'u' when it returns > 0. Hence, the warning is bogus,
but anyway.

  src/libsystemd/sd-bus/bus-objects.c:510:19: warning: 'u' may be used uninitialized in this function [-Wmaybe-uninitialized]

(and yes, indeed, even the reported line numbers are bogus in this case)
---

diff --git a/src/libsystemd/sd-bus/bus-objects.c b/src/libsystemd/sd-bus/bus-objects.c
index 85800cb34..7d325fab3 100644
--- a/src/libsystemd/sd-bus/bus-objects.c
+++ b/src/libsystemd/sd-bus/bus-objects.c
@@ -527,7 +527,7 @@ static int property_get_set_callbacks_run(
 
         _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
         _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
-        void *u;
+        void *u = NULL;
         int r;
 
         assert(bus);