From: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Date: Sun, 23 Sep 2007 14:39:05 +0000 (-0300)
Subject: ACPI: thinkpad-acpi: fix regression on HKEY LID event handling
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=3e5ce914bd17335ca74a7c7b06a776c6be6ca434;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git

ACPI: thinkpad-acpi: fix regression on HKEY LID event handling

We were letting ThinkPad-specific LID events through to userspace again,
instead of dropping them.  Fix it.  We don't want to give userspace the
option of not using generic LID handling.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
---

diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index 3efe81b1b73c..0a33c6ee4508 100644
--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -1197,6 +1197,7 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
 	u32 hkey;
 	unsigned int keycode, scancode;
 	int send_acpi_ev;
+	int ignore_acpi_ev;
 
 	if (event != 0x80) {
 		printk(IBM_ERR "unknown HKEY notification event %d\n", event);
@@ -1219,6 +1220,7 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
 		}
 
 		send_acpi_ev = 0;
+		ignore_acpi_ev = 0;
 
 		switch (hkey >> 12) {
 		case 1:
@@ -1244,6 +1246,8 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
 				       "unknown LID-related HKEY event: 0x%04x\n",
 				       hkey);
 				send_acpi_ev = 1;
+			} else {
+				ignore_acpi_ev = 1;
 			}
 			break;
 		case 7:
@@ -1263,11 +1267,12 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
 		}
 
 		/* Legacy events */
-		if (send_acpi_ev || hotkey_report_mode < 2)
+		if (!ignore_acpi_ev && (send_acpi_ev || hotkey_report_mode < 2)) {
 			acpi_bus_generate_proc_event(ibm->acpi->device, event, hkey);
+		}
 
 		/* netlink events */
-		if (send_acpi_ev) {
+		if (!ignore_acpi_ev && send_acpi_ev) {
 			acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class,
 							ibm->acpi->device->dev.bus_id,
 							event, hkey);