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

Move all char pointers to the loop. Use g_autofree in all of them to
avoid the g_free() calls.

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: <20240122221529.86562-4-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

hw/riscv/virt.c

@@ -215,12 +215,16 @@ static void create_fdt_socket_cpus(RISCVVirtState *s, int socket,
     int cpu;
     uint32_t cpu_phandle;
     MachineState *ms = MACHINE(s);
-    char *name, *cpu_name, *core_name, *intc_name, *sv_name;
     bool is_32_bit = riscv_is_32bit(&s->soc[0]);
     uint8_t satp_mode_max;
 
     for (cpu = s->soc[socket].num_harts - 1; cpu >= 0; cpu--) {
         RISCVCPU *cpu_ptr = &s->soc[socket].harts[cpu];
+        g_autofree char *name = NULL;
+        g_autofree char *cpu_name = NULL;
+        g_autofree char *core_name = NULL;
+        g_autofree char *intc_name = NULL;
+        g_autofree char *sv_name = NULL;
 
         cpu_phandle = (*phandle)++;
 
@@ -233,12 +237,10 @@ static void create_fdt_socket_cpus(RISCVVirtState *s, int socket,
             sv_name = g_strdup_printf("riscv,%s",
                                       satp_mode_str(satp_mode_max, is_32_bit));
             qemu_fdt_setprop_string(ms->fdt, cpu_name, "mmu-type", sv_name);
-            g_free(sv_name);
         }
 
         name = riscv_isa_string(cpu_ptr);
         qemu_fdt_setprop_string(ms->fdt, cpu_name, "riscv,isa", name);
-        g_free(name);
 
         if (cpu_ptr->cfg.ext_zicbom) {
             qemu_fdt_setprop_cell(ms->fdt, cpu_name, "riscv,cbom-block-size",
@@ -277,10 +279,6 @@ static void create_fdt_socket_cpus(RISCVVirtState *s, int socket,
         core_name = g_strdup_printf("%s/core%d", clust_name, cpu);
         qemu_fdt_add_subnode(ms->fdt, core_name);
         qemu_fdt_setprop_cell(ms->fdt, core_name, "cpu", cpu_phandle);
-
-        g_free(core_name);
-        g_free(intc_name);
-        g_free(cpu_name);
     }
 }