1 files changed, 17 insertions, 16 deletions

diff --git a/kernel/power/main.c b/kernel/power/main.c
index 6271bc4073ef..573410d6647e 100644
--- a/kernel/power/main.c
+++ b/kernel/power/main.c
@@ -279,26 +279,26 @@ static inline void pm_print_times_init(void) {}
 struct kobject *power_kobj;
 
 /**
- *      state - control system power state.
+ * state - control system sleep states.
  *
- *      show() returns what states are supported, which is hard-coded to
- *      'freeze' (Low-Power Idle), 'standby' (Power-On Suspend),
- *      'mem' (Suspend-to-RAM), and 'disk' (Suspend-to-Disk).
+ * show() returns available sleep state labels, which may be "mem", "standby",
+ * "freeze" and "disk" (hibernation).  See Documentation/power/states.txt for a
+ * description of what they mean.
  *
- *      store() accepts one of those strings, translates it into the
- *      proper enumerated value, and initiates a suspend transition.
+ * store() accepts one of those strings, translates it into the proper
+ * enumerated value, and initiates a suspend transition.
  */
 static ssize_t state_show(struct kobject *kobj, struct kobj_attribute *attr,
                           char *buf)
 {
         char *s = buf;
 #ifdef CONFIG_SUSPEND
-        int i;
+        suspend_state_t i;
+
+        for (i = PM_SUSPEND_MIN; i < PM_SUSPEND_MAX; i++)
+                if (pm_states[i].state)
+                        s += sprintf(s,"%s ", pm_states[i].label);
 
-        for (i = 0; i < PM_SUSPEND_MAX; i++) {
-                if (pm_states[i] && valid_state(i))
-                        s += sprintf(s,"%s ", pm_states[i]);
-        }
 #endif
 #ifdef CONFIG_HIBERNATION
         s += sprintf(s, "%s\n", "disk");
@@ -314,7 +314,7 @@ static suspend_state_t decode_state(const char *buf, size_t n)
 {
 #ifdef CONFIG_SUSPEND
         suspend_state_t state = PM_SUSPEND_MIN;
-        const char * const *s;
+        struct pm_sleep_state *s;
 #endif
         char *p;
         int len;
@@ -328,8 +328,9 @@ static suspend_state_t decode_state(const char *buf, size_t n)
 
 #ifdef CONFIG_SUSPEND
         for (s = &pm_states[state]; state < PM_SUSPEND_MAX; s++, state++)
-                if (*s && len == strlen(*s) && !strncmp(buf, *s, len))
-                        return state;
+                if (s->state && len == strlen(s->label)
+                    && !strncmp(buf, s->label, len))
+                        return s->state;
 #endif
 
         return PM_SUSPEND_ON;
@@ -447,8 +448,8 @@ static ssize_t autosleep_show(struct kobject *kobj,
 
 #ifdef CONFIG_SUSPEND
         if (state < PM_SUSPEND_MAX)
-                return sprintf(buf, "%s\n", valid_state(state) ?
-                                                pm_states[state] : "error");
+                return sprintf(buf, "%s\n", pm_states[state].state ?
+                                        pm_states[state].label : "error");
 #endif
 #ifdef CONFIG_HIBERNATION
         return sprintf(buf, "disk\n");