[PATCH 2/3][v2] ACPI: Using correct irq when waiting for events
From: Chen Yu
Date: Sat Oct 24 2015 - 13:00:06 EST
When system is waiting for GPE/fixed event handler to finish,
it uses the acpi_gbl_FADT.sci_interrupt directly. However, we
should use mapped irq returned by acpi_gsi_to_irq for synchronize_hardirq.
Cc: <stable@xxxxxxxxxxxxxxx> # 3.19+
Acked-by: Lv Zheng <lv.zheng@xxxxxxxxx>
Signed-off-by: Chen Yu <yu.c.chen@xxxxxxxxx>
---
drivers/acpi/osl.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 64df9d4..45243a7 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -1184,8 +1184,8 @@ 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);
}
--
1.8.4.2
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/