tree 035128bf7af997d5e1e5208c900ba78c5a1df46d
parent cbe263497def23befb6f475977661bae5d1f82e4
author Russell King <rmk+kernel@arm.linux.org.uk> 1309596841 +0100
committer Russell King <rmk+kernel@arm.linux.org.uk> 1309596841 +0100

ARM: pm: allow suspend finisher to return error codes

There are SoCs where attempting to enter a low power state is ignored,
and the CPU continues executing instructions with all state preserved.
It is over-complex at that point to disable the MMU just to call the
resume path.

Instead, allow the suspend finisher to return error codes to abort
suspend in this circumstance, where the cpu_suspend internals will then
unwind the saved state on the stack.  Also omit the tlb flush as no
changes to the page tables will have happened.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>