[PATCH 3/6] hw/display/virtio-gpu-udmabuf: Use RCU_READ macro

["Philippe Mathieu-Daudé" <philmd@linaro.org>]

Replace the manual rcu_read_(un)lock calls by the
WITH_RCU_READ_LOCK_GUARD macro (See commit ef46ae67ba
"docs/style: call out the use of GUARD macros").

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 hw/display/virtio-gpu-udmabuf.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/hw/display/virtio-gpu-udmabuf.c b/hw/display/virtio-gpu-udmabuf.c
index d51184d658..0ee6685803 100644
--- a/hw/display/virtio-gpu-udmabuf.c
+++ b/hw/display/virtio-gpu-udmabuf.c
@@ -42,9 +42,9 @@ static void virtio_gpu_create_udmabuf(struct virtio_gpu_simple_resource *res)
                      sizeof(struct udmabuf_create_item) * res->iov_cnt);
 
     for (i = 0; i < res->iov_cnt; i++) {
-        rcu_read_lock();
-        rb = qemu_ram_block_from_host(res->iov[i].iov_base, false, &offset);
-        rcu_read_unlock();
+        WITH_RCU_READ_LOCK_GUARD() {
+            rb = qemu_ram_block_from_host(res->iov[i].iov_base, false, &offset);
+        }
 
         if (!rb || rb->fd < 0) {
             g_free(list);
-- 
2.41.0