ARM: OMAP: Fix warning in mach-omap1

Fix warning

arch/arm/mach-omap1/pm.c: In function 'omap_pm_init':
arch/arm/mach-omap1/pm.c:765: warning: ignoring return value
of 'subsys_create_file', declared with attribute
warn_unused_result

Signed-off-by: Dirk Behme <dirk.behme_at_gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/arch/arm/mach-omap1/pm.c b/arch/arm/mach-omap1/pm.c
index 8ff232034871..49efe903dacd 100644
--- a/arch/arm/mach-omap1/pm.c
+++ b/arch/arm/mach-omap1/pm.c
@@ -706,6 +706,8 @@ static struct pm_ops omap_pm_ops ={
 
 static int __init omap_pm_init(void)
 {
+        int error;
+
         printk("Power Management for TI OMAP.\n");
 
         /*
@@ -762,7 +764,9 @@ static int __init omap_pm_init(void)
         omap_pm_init_proc();
 #endif
 
-        subsys_create_file(&power_subsys, &sleep_while_idle_attr);
+        error = subsys_create_file(&power_subsys, &sleep_while_idle_attr);
+        if (error)
+                printk(KERN_ERR "subsys_create_file failed: %d\n", error);
 
         if (cpu_is_omap16xx()) {
                 /* configure LOW_PWR pin */