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gcc-4.6: ACPI: fix unused but set variables in ACPI

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Some minor improvements in error handling, but overall it was mostly dead
code.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Andi Kleen
2010-07-20 15:18:36 -07:00
committed by Len Brown
parent 43d9f87b79
commit cfa806f059
7 changed files with 11 additions and 26 deletions
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3
drivers/acpi/processor_idle.c
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@@ -722,13 +722,12 @@ static inline void acpi_idle_do_entry(struct acpi_processor_cx *cx)
} else if (cx->entry_method == ACPI_CSTATE_HALT) {
acpi_safe_halt();
} else {
int unused;
/* IO port based C-state */
inb(cx->address);
/* Dummy wait op - must do something useless after P_LVL2 read
because chipsets cannot guarantee that STPCLK# signal
gets asserted in time to freeze execution properly. */
unused = inl(acpi_gbl_FADT.xpm_timer_block.address);
inl(acpi_gbl_FADT.xpm_timer_block.address);
}
start_critical_timings();
}