From: Matthew Daley <mattjd@gmail.com>
Date: Sun, 29 Sep 2013 01:35:02 +0000 (+1300)
Subject: libxc: only munmap when something has actually been mapped in change_pte
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~6223
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=c827d7f39f7a184ed73e435237bbba54d4272bc1;p=xen.git

libxc: only munmap when something has actually been mapped in change_pte

Coverity-ID: 1055269
signed-off-by: Matthew Daley <mattjd@gmail.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
---

diff --git a/tools/libxc/xc_offline_page.c b/tools/libxc/xc_offline_page.c
index fbb53f5f0f..8195efb952 100644
--- a/tools/libxc/xc_offline_page.c
+++ b/tools/libxc/xc_offline_page.c
@@ -317,10 +317,10 @@ static int change_pte(xc_interface *xch, int domid,
                     goto failed;
                 }
             }
-        }
 
-        munmap(content, PAGE_SIZE);
-        content = NULL;
+            munmap(content, PAGE_SIZE);
+            content = NULL;
+        }
     }
 
     if ( xc_flush_mmu_updates(xch, mmu) )