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authorMarkus Armbruster <armbru@redhat.com>2020-07-14 18:02:00 +0200
committerMarkus Armbruster <armbru@redhat.com>2020-07-21 16:23:43 +0200
commit7a309cc95b862be74711e7a35997daa3f885651a (patch)
tree1417043015cf7f35de0ebd21ff2d72a05a5b3b52 /hw/virtio/virtio-mem.c
parentaf3d69058e09bede9900f266a618ed11f76f49f3 (diff)
downloadfocaccia-qemu-7a309cc95b862be74711e7a35997daa3f885651a.tar.gz
focaccia-qemu-7a309cc95b862be74711e7a35997daa3f885651a.zip
qom: Change object_get_canonical_path_component() not to malloc
object_get_canonical_path_component() returns a malloced copy of a
property name on success, null on failure.

19 of its 25 callers immediately free the returned copy.

Change object_get_canonical_path_component() to return the property
name directly.  Since modifying the name would be wrong, adjust the
return type to const char *.

Drop the free from the 19 callers become simpler, add the g_strdup()
to the other six.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200714160202.3121879-4-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Diffstat (limited to 'hw/virtio/virtio-mem.c')
-rw-r--r--hw/virtio/virtio-mem.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/hw/virtio/virtio-mem.c b/hw/virtio/virtio-mem.c
index 65850530e7..c12e9f79b0 100644
--- a/hw/virtio/virtio-mem.c
+++ b/hw/virtio/virtio-mem.c
@@ -409,11 +409,9 @@ static void virtio_mem_device_realize(DeviceState *dev, Error **errp)
         error_setg(errp, "'%s' property is not set", VIRTIO_MEM_MEMDEV_PROP);
         return;
     } else if (host_memory_backend_is_mapped(vmem->memdev)) {
-        char *path = object_get_canonical_path_component(OBJECT(vmem->memdev));
-
         error_setg(errp, "'%s' property specifies a busy memdev: %s",
-                   VIRTIO_MEM_MEMDEV_PROP, path);
-        g_free(path);
+                   VIRTIO_MEM_MEMDEV_PROP,
+                   object_get_canonical_path_component(OBJECT(vmem->memdev)));
         return;
     } else if (!memory_region_is_ram(&vmem->memdev->mr) ||
         memory_region_is_rom(&vmem->memdev->mr) ||