From: Don Slutz <dslutz@verizon.com>
Date: Mon, 28 Jul 2014 16:06:00 +0000 (-0400)
Subject: loadpolicy.c: Fix return handling for case of mmap failure
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~4580
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=822b956ef7d5ccab86133d0cc8d49d87103adf3e;p=xen.git

loadpolicy.c: Fix return handling for case of mmap failure

mmap() returns MAP_FAILED not NULL.

Signed-off-by: Don Slutz <dslutz@verizon.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
---

diff --git a/tools/flask/utils/loadpolicy.c b/tools/flask/utils/loadpolicy.c
index 2edcf97c62..47b5139e52 100644
--- a/tools/flask/utils/loadpolicy.c
+++ b/tools/flask/utils/loadpolicy.c
@@ -61,7 +61,7 @@ int main (int argCnt, const char *args[])
 
 #ifdef USE_MMAP
     polMem = mmap(NULL, info.st_size, PROT_READ, MAP_SHARED, polFd, 0);
-    if ( !polMem )
+    if ( polMem == MAP_FAILED )
     {
         fprintf(stderr, "Error occurred mapping policy file in memory: %s\n",
                 strerror(errno));