thinkpad-acpi: Fix procfs hotkey reset command

echo "reset" > /proc/acpi/ibm/hotkey should do something non-useless,
so instead of setting it to Fn+F2, Fn+F3, Fn+F5, set it to
hotkey_recommended_mask.

It is not like it will survive for much longer, anyway.

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

2 files changed, 3 insertions, 2 deletions

diff --git a/Documentation/laptops/thinkpad-acpi.txt b/Documentation/laptops/thinkpad-acpi.txt
index ab4b58eaa7f4..6d03487ef1c7 100644
--- a/Documentation/laptops/thinkpad-acpi.txt
+++ b/Documentation/laptops/thinkpad-acpi.txt
@@ -219,7 +219,7 @@ The following commands can be written to the /proc/acpi/ibm/hotkey file:
         echo 0xffffffff > /proc/acpi/ibm/hotkey -- enable all hot keys
         echo 0 > /proc/acpi/ibm/hotkey -- disable all possible hot keys
         ... any other 8-hex-digit mask ...
-        echo reset > /proc/acpi/ibm/hotkey -- restore the original mask
+        echo reset > /proc/acpi/ibm/hotkey -- restore the recommended mask
 
 The following commands have been deprecated and will cause the kernel
 to log a warning:
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 6b667891fc3b..dd779e54894f 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -3569,7 +3569,8 @@ static int hotkey_write(char *buf)
                         hotkey_enabledisable_warn(0);
                         res = -EPERM;
                 } else if (strlencmp(cmd, "reset") == 0) {
-                        mask = hotkey_orig_mask;
+                        mask = (hotkey_all_mask | hotkey_source_mask)
+                                & ~hotkey_reserved_mask;
                 } else if (sscanf(cmd, "0x%x", &mask) == 1) {
                         /* mask set */
                 } else if (sscanf(cmd, "%x", &mask) == 1) {