thinkpad-acpi: adopt input device

Properly init the parent field of the input device.  Thanks to Alan
Jenkins, who noted this problem in a different driver.

Reported-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 86418cd3e59d..dd8bd072c79a 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -8375,6 +8375,7 @@ static int __init thinkpad_acpi_module_init(void)
                                                 PCI_VENDOR_ID_IBM;
                 tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT;
                 tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION;
+                tpacpi_inputdev->dev.parent = &tpacpi_pdev->dev;
         }
         for (i = 0; i < ARRAY_SIZE(ibms_init); i++) {
                 ret = ibm_init(&ibms_init[i]);