[PATCH] kernel/: small cleanups

[linux-2.6-omap-h63xx.git] / kernel / irq / proc.c

diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
index f26e534c6585dacf089be5fb602f70b08ee6db60..d03b5eef8ce07bee171424abcfec206c6faadcef 100644 (file)
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -10,6 +10,8 @@
 #include <linux/proc_fs.h>
 #include <linux/interrupt.h>
 
+#include "internals.h"
+
 static struct proc_dir_entry *root_irq_dir, *irq_dir[NR_IRQS];
 
 #ifdef CONFIG_SMP
@@ -68,7 +70,9 @@ static int irq_affinity_write_proc(struct file *file, const char __user *buffer,
         */
        cpus_and(tmp, new_value, cpu_online_map);
        if (cpus_empty(tmp))
-               return -EINVAL;
+               /* Special case for empty set - allow the architecture
+                  code to set default SMP affinity. */
+               return select_smp_affinity(irq) ? -EINVAL : full_count;
 
        proc_set_irq_affinity(irq, new_value);