1 files changed, 20 insertions, 11 deletions

diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c
index 56e7dbb8b99..de6f86bfa30 100644
--- a/kernel/power/suspend.c
+++ b/kernel/power/suspend.c
@@ -16,6 +16,13 @@
 #include <linux/cpu.h>
 #include <linux/syscalls.h>
 #include <linux/gfp.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/suspend.h>
+#include <trace/events/power.h>
 
 #include "power.h"
 
@@ -24,13 +31,13 @@ const char *const pm_states[PM_SUSPEND_MAX] = {
 	[PM_SUSPEND_MEM]	= "mem",
 };
 
-static struct platform_suspend_ops *suspend_ops;
+static const struct platform_suspend_ops *suspend_ops;
 
 /**
  *	suspend_set_ops - Set the global suspend method table.
  *	@ops:	Pointer to ops structure.
  */
-void suspend_set_ops(struct platform_suspend_ops *ops)
+void suspend_set_ops(const struct platform_suspend_ops *ops)
 {
 	mutex_lock(&pm_mutex);
 	suspend_ops = ops;
@@ -130,19 +137,19 @@ static int suspend_enter(suspend_state_t state)
 	if (suspend_ops->prepare) {
 		error = suspend_ops->prepare();
 		if (error)
-			return error;
+			goto Platform_finish;
 	}
 
 	error = dpm_suspend_noirq(PMSG_SUSPEND);
 	if (error) {
 		printk(KERN_ERR "PM: Some devices failed to power down\n");
-		goto Platfrom_finish;
+		goto Platform_finish;
 	}
 
 	if (suspend_ops->prepare_late) {
 		error = suspend_ops->prepare_late();
 		if (error)
-			goto Power_up_devices;
+			goto Platform_wake;
 	}
 
 	if (suspend_test(TEST_PLATFORM))
@@ -157,8 +164,10 @@ static int suspend_enter(suspend_state_t state)
 
 	error = sysdev_suspend(PMSG_SUSPEND);
 	if (!error) {
-		if (!suspend_test(TEST_CORE))
+		if (!(suspend_test(TEST_CORE) || pm_wakeup_pending())) {
 			error = suspend_ops->enter(state);
+			events_check_enabled = false;
+		}
 		sysdev_resume();
 	}
 
@@ -172,10 +181,9 @@ static int suspend_enter(suspend_state_t state)
 	if (suspend_ops->wake)
 		suspend_ops->wake();
 
- Power_up_devices:
 	dpm_resume_noirq(PMSG_RESUME);
 
- Platfrom_finish:
+ Platform_finish:
 	if (suspend_ops->finish)
 		suspend_ops->finish();
 
@@ -190,18 +198,18 @@ static int suspend_enter(suspend_state_t state)
 int suspend_devices_and_enter(suspend_state_t state)
 {
 	int error;
-	gfp_t saved_mask;
 
 	if (!suspend_ops)
 		return -ENOSYS;
 
+	trace_machine_suspend(state);
 	if (suspend_ops->begin) {
 		error = suspend_ops->begin(state);
 		if (error)
 			goto Close;
 	}
 	suspend_console();
-	saved_mask = clear_gfp_allowed_mask(GFP_IOFS);
+	pm_restrict_gfp_mask();
 	suspend_test_start();
 	error = dpm_suspend_start(PMSG_SUSPEND);
 	if (error) {
@@ -218,11 +226,12 @@ int suspend_devices_and_enter(suspend_state_t state)
 	suspend_test_start();
 	dpm_resume_end(PMSG_RESUME);
 	suspend_test_finish("resume devices");
-	set_gfp_allowed_mask(saved_mask);
+	pm_restore_gfp_mask();
 	resume_console();
  Close:
 	if (suspend_ops->end)
 		suspend_ops->end();
+	trace_machine_suspend(PWR_EVENT_EXIT);
 	return error;
 
  Recover_platform: