1 files changed, 7 insertions, 14 deletions

diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
index f9bec56d8825..6418d8c8cdb2 100644
--- a/kernel/power/hibernate.c
+++ b/kernel/power/hibernate.c
@@ -248,12 +248,6 @@ static int create_image(int platform_mode)
         if (error)
                 return error;
 
-        /* At this point, dpm_suspend_start() has been called, but *not*
-         * dpm_suspend_noirq(). We *must* call dpm_suspend_noirq() now.
-         * Otherwise, drivers for some devices (e.g. interrupt controllers)
-         * become desynchronized with the actual state of the hardware
-         * at resume time, and evil weirdness ensues.
-         */
         error = dpm_suspend_noirq(PMSG_FREEZE);
         if (error) {
                 printk(KERN_ERR "PM: Some devices failed to power down, "
@@ -297,9 +291,6 @@ static int create_image(int platform_mode)
 
  Power_up:
         syscore_resume();
-        /* NOTE:  dpm_resume_noirq() is just a resume() for devices
-         * that suspended with irqs off ... no overall powerup.
-         */
 
  Enable_irqs:
         local_irq_enable();
@@ -416,24 +407,26 @@ static int resume_target_kernel(bool platform_mode)
         if (error)
                 goto Enable_irqs;
 
-        /* We'll ignore saved state, but this gets preempt count (etc) right */
         save_processor_state();
         error = restore_highmem();
         if (!error) {
                 error = swsusp_arch_resume();
                 /*
                  * The code below is only ever reached in case of a failure.
-                 * Otherwise execution continues at place where
-                 * swsusp_arch_suspend() was called
+                 * Otherwise, execution continues at the place where
+                 * swsusp_arch_suspend() was called.
                  */
                 BUG_ON(!error);
-                /* This call to restore_highmem() undos the previous one */
+                /*
+                 * This call to restore_highmem() reverts the changes made by
+                 * the previous one.
+                 */
                 restore_highmem();
         }
         /*
          * The only reason why swsusp_arch_resume() can fail is memory being
          * very tight, so we have to free it as soon as we can to avoid
-         * subsequent failures
+         * subsequent failures.
          */
         swsusp_free();
         restore_processor_state();