hid: rkvr: fix inconsistent returns in inv_hid_register_devcie()

Change-Id: Ida0a3dff53c9e47dc04b0111ea56500d1adcbb3c
Signed-off-by: lanshh <lsh@rock-chips.com>

diff --git a/drivers/hid/hid-rkvr.c b/drivers/hid/hid-rkvr.c
index 4360c28dd729b1e146a7e75c79d0c058a563d6a5..0bdafb380a5fdd82b8f91c24bfef204dafce4ca8 100644 (file)
--- a/drivers/hid/hid-rkvr.c
+++ b/drivers/hid/hid-rkvr.c
@@ -142,6 +142,7 @@ static int inv_hid_register_devcie(struct rkvr_iio_hw_device *hw_device)
                list_for_each_entry(p, &rkvr_hid_hw_device_list, l) {
                        if (!strcmp(hw_device->name, p->name)) {
                                pr_err("%s already exist ,abort\n", hw_device->name);
+                               mutex_unlock(&device_list_lock);
                                return -1;
                        }
                }