iucv: convert cpu notifier to return encapsulate errno value
Akinobu Mita [Wed, 26 May 2010 21:43:33 +0000 (14:43 -0700)]
By the previous modification, the cpu notifier can return encapsulate
errno value.  This converts the cpu notifiers for iucv.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

net/iucv/iucv.c

index fd8b283..f28ad2c 100644 (file)
@@ -632,13 +632,14 @@ static int __cpuinit iucv_cpu_notify(struct notifier_block *self,
                iucv_irq_data[cpu] = kmalloc_node(sizeof(struct iucv_irq_data),
                                        GFP_KERNEL|GFP_DMA, cpu_to_node(cpu));
                if (!iucv_irq_data[cpu])
-                       return NOTIFY_BAD;
+                       return notifier_from_errno(-ENOMEM);
+
                iucv_param[cpu] = kmalloc_node(sizeof(union iucv_param),
                                     GFP_KERNEL|GFP_DMA, cpu_to_node(cpu));
                if (!iucv_param[cpu]) {
                        kfree(iucv_irq_data[cpu]);
                        iucv_irq_data[cpu] = NULL;
-                       return NOTIFY_BAD;
+                       return notifier_from_errno(-ENOMEM);
                }
                iucv_param_irq[cpu] = kmalloc_node(sizeof(union iucv_param),
                                        GFP_KERNEL|GFP_DMA, cpu_to_node(cpu));
@@ -647,7 +648,7 @@ static int __cpuinit iucv_cpu_notify(struct notifier_block *self,
                        iucv_param[cpu] = NULL;
                        kfree(iucv_irq_data[cpu]);
                        iucv_irq_data[cpu] = NULL;
-                       return NOTIFY_BAD;
+                       return notifier_from_errno(-ENOMEM);
                }
                break;
        case CPU_UP_CANCELED:
@@ -677,7 +678,7 @@ static int __cpuinit iucv_cpu_notify(struct notifier_block *self,
                cpu_clear(cpu, cpumask);
                if (cpus_empty(cpumask))
                        /* Can't offline last IUCV enabled cpu. */
-                       return NOTIFY_BAD;
+                       return notifier_from_errno(-EINVAL);
                smp_call_function_single(cpu, iucv_retrieve_cpu, NULL, 1);
                if (cpus_empty(iucv_irq_cpumask))
                        smp_call_function_single(first_cpu(iucv_buffer_cpumask),