[Libvirt-cim] [PATCH 1/8] acl_parsing: Avoid NULL dereference

[Eduardo Lima (Etrunko)]

From: Eduardo Lima (Etrunko) <eblima at br.ibm.com>

As revealed by Coverity scan report:

https://bugzilla.redhat.com/show_bug.cgi?id=728245#c8
https://bugzilla.redhat.com/attachment.cgi?id=530435

Error: REVERSE_INULL:
acl_parsing.c:172: deref_ptr: Directly dereferencing pointer "filters".
acl_parsing.c:174: check_after_deref: Dereferencing "filters" before a null
                   check.

Signed-off-by: Eduardo Lima (Etrunko) <eblima at br.ibm.com>
---
 libxkutil/acl_parsing.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/libxkutil/acl_parsing.c b/libxkutil/acl_parsing.c
index 935e642..7cde1f0 100644
--- a/libxkutil/acl_parsing.c
+++ b/libxkutil/acl_parsing.c
@@ -151,11 +151,13 @@ void cleanup_filter(struct acl_filter *filter)
 void cleanup_filters(struct acl_filter **filters, int count)
 {
         int i;
-        struct acl_filter *_filters = *filters;
+        struct acl_filter *_filters;
 
         if((filters == NULL) || (*filters == NULL) || (count == 0))
                 return;
 
+        _filters = *filters;
+
         for (i = 0; i < count; i++)
                 cleanup_filter(&_filters[i]);
 
-- 
1.7.4.4