PM: no suspend_prepare() phase

Remove the new suspend_prepare() phase.  It doesn't seem very usable,
has never been tested, doesn't address fault cleanup, and would need
a sibling resume_complete(); plus there are no real use cases.  It
could be restored later if those issues get resolved.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 0 insertions, 4 deletions

diff --git a/kernel/power/main.c b/kernel/power/main.c
index 0c3ed6ac938e..6d295c776794 100644
--- a/kernel/power/main.c
+++ b/kernel/power/main.c
@@ -57,10 +57,6 @@ static int suspend_prepare(suspend_state_t state)
         if (!pm_ops || !pm_ops->enter)
                 return -EPERM;
 
-        error = device_prepare_suspend(PMSG_SUSPEND);
-        if (error)
-                return error;
-
         pm_prepare_console();
 
         disable_nonboot_cpus();