From 69aaf3c41923fafd9616b1bbec51fa6bcb23b886 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
Date: Sat, 7 Mar 2015 15:05:50 -0500
Subject: [PATCH] bus: fix leak in error path

CID #1271349.

Cherry-picked from: bcf88fc3f14867f1cabc911c27b661d738281df0
Related: #1331667
---
 src/libsystemd/sd-bus/bus-message.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/src/libsystemd/sd-bus/bus-message.c b/src/libsystemd/sd-bus/bus-message.c
index 2959303..c8402a2 100644
--- a/src/libsystemd/sd-bus/bus-message.c
+++ b/src/libsystemd/sd-bus/bus-message.c
@@ -441,7 +441,7 @@ int bus_message_from_header(
                 size_t extra,
                 sd_bus_message **ret) {
 
-        sd_bus_message *m;
+        _cleanup_free_ sd_bus_message *m = NULL;
         struct bus_header *h;
         size_t a, label_sz;
 
@@ -460,15 +460,13 @@ int bus_message_from_header(
                 return -EBADMSG;
 
         h = header;
-        if (h->version != 1 &&
-            h->version != 2)
+        if (!IN_SET(h->version, 1, 2))
                 return -EBADMSG;
 
         if (h->type == _SD_BUS_MESSAGE_TYPE_INVALID)
                 return -EBADMSG;
 
-        if (h->endian != BUS_LITTLE_ENDIAN &&
-            h->endian != BUS_BIG_ENDIAN)
+        if (!IN_SET(h->endian, BUS_LITTLE_ENDIAN, BUS_BIG_ENDIAN))
                 return -EBADMSG;
 
         /* Note that we are happy with unknown flags in the flags header! */
@@ -557,6 +555,7 @@ int bus_message_from_header(
 
         m->bus = sd_bus_ref(bus);
         *ret = m;
+        m = NULL;
 
         return 0;
 }