From: Pramod Devendra <pramod.devendra@citrix.com>
Date: Mon, 16 Mar 2015 10:06:50 +0000 (+0000)
Subject: tools/libxc/xc_linux_osdep.c: Don't leak mmap() mapping on map_foreign_bulk() error... 
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~3581
X-Git-Url: https://dgit.raspbian.org/%22http:/www.example.com/cgi/%22https://%22%22/%22http:/www.example.com/cgi/%22https:/%22%22?a=commitdiff_plain;h=c95e997f0af5b6058b8e5ee8109048cb2766529c;p=xen.git

tools/libxc/xc_linux_osdep.c: Don't leak mmap() mapping on map_foreign_bulk() error path

Signed-off-by: Pramod Devendra <pramod.devendra@citrix.com>
CC: Ian Jackson <ian.jackson@eu.citrix.com>
CC: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
CC: Ian Campbell <ian.campbell@citrix.com>
CC: Wei Liu <wei.liu2@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
---

diff --git a/tools/libxc/xc_linux_osdep.c b/tools/libxc/xc_linux_osdep.c
index a19e4b69ea..92f7cace97 100644
--- a/tools/libxc/xc_linux_osdep.c
+++ b/tools/libxc/xc_linux_osdep.c
@@ -316,6 +316,7 @@ static void *linux_privcmd_map_foreign_bulk(xc_interface *xch, xc_osdep_handle h
             if ( pfn == MAP_FAILED )
             {
                 PERROR("xc_map_foreign_bulk: mmap of pfn array failed");
+                (void)munmap(addr, (unsigned long)num << XC_PAGE_SHIFT);
                 return NULL;
             }
         }