[libvirt] [PATCH] node_device: fix memory leak in nodeDeviceSysfsGetSCSIHostCaps

[Yi Wang]

The @tmp is allocated in virVHBAGetConfig in virVHBAIsVportCapable
condition, it will lost when virVHBAGetConfig called again.

Signed-off-by: Yi Wang <wang.yi59 at zte.com.cn>
---
 src/node_device/node_device_linux_sysfs.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/node_device/node_device_linux_sysfs.c b/src/node_device/node_device_linux_sysfs.c
index 1b7aa94..a9c7c9c 100644
--- a/src/node_device/node_device_linux_sysfs.c
+++ b/src/node_device/node_device_linux_sysfs.c
@@ -95,7 +95,8 @@ nodeDeviceSysfsGetSCSIHostCaps(virNodeDevCapSCSIHostPtr scsi_host)
             goto cleanup;
         }
 
-         if (!(tmp = virVHBAGetConfig(NULL, scsi_host->host,
+        VIR_FREE(tmp);
+        if (!(tmp = virVHBAGetConfig(NULL, scsi_host->host,
                                       "npiv_vports_inuse"))) {
             VIR_WARN("Failed to read npiv_vports_inuse for host%d",
                      scsi_host->host);
-- 
1.8.3.1