[power] Further swsusp cleanups.

- Remove drivers_resume() and call from do_magic_resume2(). Handled by core.
- When bringing devices back to life, call device_pm_resume()
- Make sure we report the error from write_suspend_image()
- Remove suspend_power_down() and call to it. Handled by PM core.
- Move swap file resetting and freeing of pagedir to swsusp_free()
- Remove extraneous in_atomic() checks. 
- Mark all resume functions __init.
- Move resume_suspend_image() inside swsusp_read() and cleanup. 
- Make do_magic() report error.

include/asm-i386/suspend.h

@@ -38,7 +38,7 @@ struct saved_context {
 extern void save_processor_state(void);
 extern void restore_processor_state(void);
 
-extern void do_magic(int resume);
+extern int do_magic(int resume);
 
 #ifdef CONFIG_ACPI_SLEEP
 extern unsigned long saved_eip;

include/linux/suspend.h

@@ -48,13 +48,6 @@ extern void drain_local_pages(void);
 extern unsigned int nr_copy_pages __nosavedata;
 extern suspend_pagedir_t *pagedir_nosave __nosavedata;
 
-/* Communication between kernel/suspend.c and arch/i386/suspend.c */
-
-extern void do_magic_resume_1(void);
-extern void do_magic_resume_2(void);
-extern void do_magic_suspend_1(void);
-extern void do_magic_suspend_2(void);
-
 /* Communication between acpi and arch/i386/suspend.c */
 
 extern void do_suspend_lowlevel(int resume);

kernel/power/console.c

@@ -41,6 +41,11 @@ void pm_restore_console(void)
 	console_loglevel = orig_loglevel;
 #ifdef SUSPEND_CONSOLE
 	set_console(orig_fgconsole);
+
+	/* FIXME: 
+	 * This following part is left over from swsusp. Is it really needed?
+	 */
+	update_screen(fg_console);
 #endif
 	return;
 }