s3:samlogon_cache: fix O3 error unused result of truncate

in netsamlogon_cache_init()

Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Christian Ambach <ambi@samba.org>

diff --git a/source3/libsmb/samlogon_cache.c b/source3/libsmb/samlogon_cache.c
index c408082e8060e054ad51529c32614f7be018cfbc..7be54792fff54a80dc3b3a6bcc2fbe651b7461c6 100644 (file)
--- a/source3/libsmb/samlogon_cache.c
+++ b/source3/libsmb/samlogon_cache.c
@@ -77,7 +77,13 @@ clear:
        first_try = false;
 
        DEBUG(0,("retry after truncate for '%s'\n", path));
-       truncate(path, 0);
+       ret = truncate(path, 0);
+       if (ret == -1) {
+               DBG_ERR("truncate failed: %s\n", strerror(errno));
+               talloc_free(path);
+               return false;
+       }
+
        goto again;
 }