hw/riscv/virt.c: use g_autofree in create_fdt_virtio()

Put 'name' declaration inside the loop, with g_autofree, to avoid
manually doing g_free() in each iteration.

Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240122221529.86562-6-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

hw/riscv/virt.c

@@ -820,12 +820,12 @@ static void create_fdt_virtio(RISCVVirtState *s, const MemMapEntry *memmap,
                               uint32_t irq_virtio_phandle)
 {
     int i;
-    char *name;
     MachineState *ms = MACHINE(s);
 
     for (i = 0; i < VIRTIO_COUNT; i++) {
-        name = g_strdup_printf("/soc/virtio_mmio@%lx",
+        g_autofree char *name =  g_strdup_printf("/soc/virtio_mmio@%lx",
             (long)(memmap[VIRT_VIRTIO].base + i * memmap[VIRT_VIRTIO].size));
+
         qemu_fdt_add_subnode(ms->fdt, name);
         qemu_fdt_setprop_string(ms->fdt, name, "compatible", "virtio,mmio");
         qemu_fdt_setprop_cells(ms->fdt, name, "reg",
@@ -840,7 +840,6 @@ static void create_fdt_virtio(RISCVVirtState *s, const MemMapEntry *memmap,
             qemu_fdt_setprop_cells(ms->fdt, name, "interrupts",
                                    VIRTIO_IRQ + i, 0x4);
         }
-        g_free(name);
     }
 }