HID: hiddev, fix lock imbalance

Add omitted BKL to one switch/case.

Cc: Stable <stable@kernel.org>
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c
index e9b436d2d944..39e27f4be4ac 100644
--- a/drivers/hid/usbhid/hiddev.c
+++ b/drivers/hid/usbhid/hiddev.c
@@ -527,8 +527,10 @@ static noinline int hiddev_ioctl_usage(struct hiddev *hiddev, unsigned int cmd,
                         goto goodreturn;
 
                 case HIDIOCGCOLLECTIONINDEX:
+                        i = field->usage[uref->usage_index].collection_index;
+                        unlock_kernel();
                         kfree(uref_multi);
-                        return field->usage[uref->usage_index].collection_index;
+                        return i;
                 case HIDIOCGUSAGES:
                         for (i = 0; i < uref_multi->num_values; i++)
                                 uref_multi->values[i] =