[Qemu-stable] [PATCH 2/3] hw/s390x: fix memory leak in s390_init_ipl_dev()

[Greg Kurz]

The string returned by object_property_get_str() is dynamically allocated.

Fixes: 3c4e9baacf4d9
Signed-off-by: Greg Kurz <address@hidden>
---
 hw/s390x/s390-virtio-ccw.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c
index 864145a7c6f3..435f7c99e77c 100644
--- a/hw/s390x/s390-virtio-ccw.c
+++ b/hw/s390x/s390-virtio-ccw.c
@@ -246,6 +246,7 @@ static void s390_init_ipl_dev(const char *kernel_filename,
 {
     Object *new = object_new(TYPE_S390_IPL);
     DeviceState *dev = DEVICE(new);
+    char *netboot_fw_prop;
 
     if (kernel_filename) {
         qdev_prop_set_string(dev, "kernel", kernel_filename);
@@ -256,9 +257,11 @@ static void s390_init_ipl_dev(const char *kernel_filename,
     qdev_prop_set_string(dev, "cmdline", kernel_cmdline);
     qdev_prop_set_string(dev, "firmware", firmware);
     qdev_prop_set_bit(dev, "enforce_bios", enforce_bios);
-    if (!strlen(object_property_get_str(new, "netboot_fw", &error_abort))) {
+    netboot_fw_prop = object_property_get_str(new, "netboot_fw", &error_abort);
+    if (!strlen(netboot_fw_prop)) {
         qdev_prop_set_string(dev, "netboot_fw", netboot_fw);
     }
+    g_free(netboot_fw_prop);
     object_property_add_child(qdev_get_machine(), TYPE_S390_IPL,
                               new, NULL);
     object_unref(new);