[PATCH 2/3] rpc: avoid uninitialized memory use

[Eric Blake <eblake@xxxxxxxxxx>]

Spotted by Coverity.  Gnutls documents that buffer must be NULL
if gnutls_x509_crt_get_key_purpose_oid is to be used to determine
the correct size needed for allocating a buffer.

* src/rpc/virnettlscontext.c
(virNetTLSContextCheckCertKeyPurpose): Initialize buffer.
---
 src/rpc/virnettlscontext.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/src/rpc/virnettlscontext.c b/src/rpc/virnettlscontext.c
index 2a58ede..be08207 100644
--- a/src/rpc/virnettlscontext.c
+++ b/src/rpc/virnettlscontext.c
@@ -264,7 +264,7 @@ static int virNetTLSContextCheckCertKeyPurpose(gnutls_x509_crt_t cert,
     int i;
     unsigned int purposeCritical;
     unsigned int critical;
-    char *buffer;
+    char *buffer = NULL;
     size_t size;
     bool allowClient = false, allowServer = false;

-- 
1.7.4.4

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