virt plugin: fix segfault on error path

[collectd.git] / src / virt.c

diff --git a/src/virt.c b/src/virt.c
index ca6e831..39165bc 100644 (file)
--- a/src/virt.c
+++ b/src/virt.c
@@ -444,12 +444,10 @@ static void init_block_info(struct lv_block_info *binfo) {
 #ifdef HAVE_BLOCK_STATS_FLAGS
 
 #define GET_BLOCK_INFO_VALUE(NAME, FIELD)                                      \
-  do {                                                                         \
-    if (!strcmp(param[i].field, NAME)) {                                       \
-      binfo->FIELD = param[i].value.l;                                         \
-      continue;                                                                \
-    }                                                                          \
-  } while (0)
+  if (!strcmp(param[i].field, NAME)) {                                         \
+    binfo->FIELD = param[i].value.l;                                           \
+    continue;                                                                  \
+  }
 
 static int get_block_info(struct lv_block_info *binfo,
                           virTypedParameterPtr param, int nparams) {
@@ -1638,7 +1636,7 @@ static int lv_read(user_data_t *ud) {
       ERROR(PLUGIN_NAME
             " failed to get stats for block device (%s) in domain %s",
             state->block_devices[i].path,
-            virDomainGetName(state->domains[i].ptr));
+            virDomainGetName(state->block_devices[i].dom));
   }
 
   /* Get interface stats for each domain. */