hw/ppc/spapr_caps.c: use g_autofree in spapr_cap_get_string()

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220228175004.8862-5-danielhb413@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>

hw/ppc/spapr_caps.c

@@ -95,12 +95,12 @@ static void spapr_cap_set_bool(Object *obj, Visitor *v, const char *name,
 }
 
 
-static void  spapr_cap_get_string(Object *obj, Visitor *v, const char *name,
-                                  void *opaque, Error **errp)
+static void spapr_cap_get_string(Object *obj, Visitor *v, const char *name,
+                                 void *opaque, Error **errp)
 {
     SpaprCapabilityInfo *cap = opaque;
     SpaprMachineState *spapr = SPAPR_MACHINE(obj);
-    char *val = NULL;
+    g_autofree char *val = NULL;
     uint8_t value = spapr_get_cap(spapr, cap->index);
 
     if (value >= cap->possible->num) {
@@ -111,7 +111,6 @@ static void  spapr_cap_get_string(Object *obj, Visitor *v, const char *name,
     val = g_strdup(cap->possible->vals[value]);
 
     visit_type_str(v, name, &val, errp);
-    g_free(val);
 }
 
 static void spapr_cap_set_string(Object *obj, Visitor *v, const char *name,