Fix signed / unsigned comparison errors.

[collectd.git] / src / modbus.c

diff --git a/src/modbus.c b/src/modbus.c
index 04abe04..4a98e53 100644 (file)
--- a/src/modbus.c
+++ b/src/modbus.c
@@ -440,7 +440,7 @@ static int mb_read_data (mb_host_t *host, mb_slave_t *slave, /* {{{ */
 
   if (ds->ds_num != 1)
   {
-    ERROR ("Modbus plugin: The type \"%s\" has %i data sources. "
+    ERROR ("Modbus plugin: The type \"%s\" has %zu data sources. "
         "I can only handle data sets with only one data source.",
         data->type, ds->ds_num);
     return (-1);