diff --git a/src/hyperv/hyperv_wmi.c b/src/hyperv/hyperv_wmi.c
index 8bc376e22f..0b82f1f131 100644
--- a/src/hyperv/hyperv_wmi.c
+++ b/src/hyperv/hyperv_wmi.c
@@ -184,14 +184,12 @@ hypervFreeInvokeParams(hypervInvokeParamsList *params)
 }
 
 
-static inline int
+static inline void
 hypervCheckParams(hypervInvokeParamsList *params)
 {
     if (params->nbParams + 1 > params->nbAvailParams) {
         VIR_EXPAND_N(params->params, params->nbAvailParams, 5);
     }
-
-    return 0;
 }
 
 
@@ -212,8 +210,7 @@ hypervAddSimpleParam(hypervInvokeParamsList *params, const char *name,
 {
     hypervParam *p = NULL;
 
-    if (hypervCheckParams(params) < 0)
-        return -1;
+    hypervCheckParams(params);
 
     p = &params->params[params->nbParams];
     p->type = HYPERV_SIMPLE_PARAM;
@@ -245,8 +242,7 @@ hypervAddEprParam(hypervInvokeParamsList *params,
 {
     hypervParam *p = NULL;
 
-    if (hypervCheckParams(params) < 0)
-        return -1;
+    hypervCheckParams(params);
 
     p = &params->params[params->nbParams];
     p->type = HYPERV_EPR_PARAM;
@@ -333,8 +329,7 @@ hypervAddEmbeddedParam(hypervInvokeParamsList *params,
 {
     hypervParam *p = NULL;
 
-    if (hypervCheckParams(params) < 0)
-        return -1;
+    hypervCheckParams(params);
 
     p = &params->params[params->nbParams];
     p->type = HYPERV_EMBEDDED_PARAM;