diff --git a/src/conf/nwfilter_conf.c b/src/conf/nwfilter_conf.c
index fd3d805077..2ac18511e9 100644
--- a/src/conf/nwfilter_conf.c
+++ b/src/conf/nwfilter_conf.c
@@ -2239,6 +2239,7 @@ virNWFilterPoolObjLoad(virConnectPtr conn,
         return NULL;
     }
 
+    VIR_FREE(pool->configFile); // for driver reload
     pool->configFile = strdup(path);
     if (pool->configFile == NULL) {
         virReportOOMError();
diff --git a/src/conf/storage_conf.c b/src/conf/storage_conf.c
index bf86c9342f..18a6472512 100644
--- a/src/conf/storage_conf.c
+++ b/src/conf/storage_conf.c
@@ -1403,12 +1403,14 @@ virStoragePoolObjLoad(virStoragePoolObjListPtr pools,
         return NULL;
     }
 
+    VIR_FREE(pool->configFile);  // for driver reload
     pool->configFile = strdup(path);
     if (pool->configFile == NULL) {
         virReportOOMError();
         virStoragePoolDefFree(def);
         return NULL;
     }
+    VIR_FREE(pool->autostartLink); // for driver reload
     pool->autostartLink = strdup(autostartLink);
     if (pool->autostartLink == NULL) {
         virReportOOMError();
diff --git a/src/cpu/cpu_x86.c b/src/cpu/cpu_x86.c
index ab7c8cc77e..19379016d0 100644
--- a/src/cpu/cpu_x86.c
+++ b/src/cpu/cpu_x86.c
@@ -1092,6 +1092,12 @@ x86MapFree(struct x86_map *map)
         x86ModelFree(model);
     }
 
+    while (map->vendors != NULL) {
+        struct x86_vendor *vendor = map->vendors;
+        map->vendors = vendor->next;
+        x86VendorFree(vendor);
+    }
+
     VIR_FREE(map);
 }
 
diff --git a/src/util/util.c b/src/util/util.c
index c173e491d0..9679dc908f 100644
--- a/src/util/util.c
+++ b/src/util/util.c
@@ -941,9 +941,11 @@ virPipeReadUntilEOF(int outfd, int errfd,
 
     fds[0].fd = outfd;
     fds[0].events = POLLIN;
+    fds[0].revents = 0;
     finished[0] = 0;
     fds[1].fd = errfd;
     fds[1].events = POLLIN;
+    fds[1].revents = 0;
     finished[1] = 0;
 
     while(!(finished[0] && finished[1])) {