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

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>

1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 5cbc0cb73e2..07bc74d8356 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -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();
 }