x86_64: Fix S3 fail path

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As acpi_enter_sleep_state can fail, take this into account in
do_suspend_lowlevel and don't return to the do_suspend_lowlevel's
caller. This would break (currently) fpu status and preempt count.

Technically, this means use `call' instead of `jmp' and `jmp' to
the `resume_point' after the `call' (i.e. if
acpi_enter_sleep_state returns=fails). `resume_point' will handle
the restore of fpu and preempt count gracefully.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>

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Jiri Slaby 2009-02-15 22:46:45 +01:00 • committed by Len Brown

parent e6bd6760c9

commit 6defa2fe20

1 changed files with 3 additions and 1 deletions

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arch/x86/kernel/acpi/wakeup_64.S

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