x86: ioapic: Cleanup get_one_free_irq_cfg()

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 4303099..452f781 100644 (file)
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -185,19 +185,18 @@ static struct irq_cfg *get_one_free_irq_cfg(int node)
        struct irq_cfg *cfg;
 
        cfg = kzalloc_node(sizeof(*cfg), GFP_ATOMIC, node);
-       if (cfg) {
-               if (!zalloc_cpumask_var_node(&cfg->domain, GFP_ATOMIC, node)) {
-                       kfree(cfg);
-                       cfg = NULL;
-               } else if (!zalloc_cpumask_var_node(&cfg->old_domain,
-                                                         GFP_ATOMIC, node)) {
-                       free_cpumask_var(cfg->domain);
-                       kfree(cfg);
-                       cfg = NULL;
-               }
-       }
-
+       if (!cfg)
+               return NULL;
+       if (!zalloc_cpumask_var_node(&cfg->domain, GFP_ATOMIC, node))
+               goto out_cfg;
+       if (!zalloc_cpumask_var_node(&cfg->old_domain, GFP_ATOMIC, node))
+               goto out_domain;
        return cfg;
+out_domain:
+       free_cpumask_var(cfg->domain);
+out_cfg:
+       kfree(cfg);
+       return NULL;
 }
 
 int arch_init_chip_data(struct irq_desc *desc, int node)