fix possibly garbage value returned in cert_process_revoker

Fixes following warning reported by clang-9 scan-build analyzer:

 ucert.c:585:2: warning: Undefined or garbage value returned to caller
        return ret;
        ^~~~~~~~~~

Signed-off-by: Petr Štetiar <ynezz@true.cz>

1 files changed, 1 insertions, 1 deletions

diff --git a/ucert.c b/ucert.c
index 8503eeb..b9c5c88 100644
--- a/ucert.c
+++ b/ucert.c
@@ -508,7 +508,7 @@ static int cert_process_revoker(const char *certfile, const char *pubkeydir) {
 	char *fingerprint;
 	char rfname[512];
 
-	int ret;
+	int ret = -1;
 
 	if (cert_load(certfile, &certchain)) {
 		DPRINTF("cannot parse cert\n");