rrdtool: unlock mutex on error

CID 37972

Signed-off-by: Florian Forster <octo@collectd.org>

diff --git a/src/rrdtool.c b/src/rrdtool.c
index 192a04d..9b5723a 100644 (file)
--- a/src/rrdtool.c
+++ b/src/rrdtool.c
@@ -733,7 +733,10 @@ static int rrd_cache_insert (const char *filename,
        {
                rc = malloc (sizeof (*rc));
                if (rc == NULL)
+               {
+                       pthread_mutex_unlock (&cache_lock);
                        return (-1);
+               }
                rc->values_num = 0;
                rc->values = NULL;
                rc->first_value = 0;