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

And get rid of the 'out' label since it's now unused.

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220228175004.8862-4-danielhb413@gmail.com>
[ clg: Fixed typo in commit log ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>

hw/ppc/spapr_caps.c

@@ -120,7 +120,7 @@ static void spapr_cap_set_string(Object *obj, Visitor *v, const char *name,
     SpaprCapabilityInfo *cap = opaque;
     SpaprMachineState *spapr = SPAPR_MACHINE(obj);
     uint8_t i;
-    char *val;
+    g_autofree char *val = NULL;
 
     if (!visit_type_str(v, name, &val, errp)) {
         return;
@@ -128,20 +128,18 @@ static void spapr_cap_set_string(Object *obj, Visitor *v, const char *name,
 
     if (!strcmp(val, "?")) {
         error_setg(errp, "%s", cap->possible->help);
-        goto out;
+        return;
     }
     for (i = 0; i < cap->possible->num; i++) {
         if (!strcasecmp(val, cap->possible->vals[i])) {
             spapr->cmd_line_caps[cap->index] = true;
             spapr->eff.caps[cap->index] = i;
-            goto out;
+            return;
         }
     }
 
     error_setg(errp, "Invalid capability mode \"%s\" for cap-%s", val,
                cap->name);
-out:
-    g_free(val);
 }
 
 static void spapr_cap_get_pagesize(Object *obj, Visitor *v, const char *name,