ACPI: Using correct irq when waiting for events

When the system is waiting for GPE/fixed event handler to finish,
it uses acpi_gbl_FADT.sci_interrupt directly as the IRQ number.
However, the remapped IRQ returned by acpi_gsi_to_irq() should be
passed to synchronize_hardirq() instead of it.

Cc: 3.19+ <stable@vger.kernel.org> # 3.19+
Acked-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 2a25919f8eaba147ce77f135dfeceab5f6375bd6..2f6e3c6ad39b5f580ce85f76ad98098988deec2c 100644 (file)
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -1183,8 +1183,8 @@ void acpi_os_wait_events_complete(void)
         * Make sure the GPE handler or the fixed event handler is not used
         * on another CPU after removal.
         */
-       if (acpi_irq_handler)
-               synchronize_hardirq(acpi_gbl_FADT.sci_interrupt);
+       if (acpi_sci_irq_valid())
+               synchronize_hardirq(acpi_sci_irq);
        flush_workqueue(kacpid_wq);
        flush_workqueue(kacpi_notify_wq);
 }