isdn: Disable IIOCDBGVAR

[mirror_ubuntu-bionic-kernel.git] / drivers / isdn / i4l / isdn_common.c

diff --git a/drivers/isdn/i4l/isdn_common.c b/drivers/isdn/i4l/isdn_common.c
index 8b03d618185e3c7c0c74c7dc8bad6fe1169f7e19..5f1119ca9a398bbbb33b2c603ea6211143946ef2 100644 (file)
--- a/drivers/isdn/i4l/isdn_common.c
+++ b/drivers/isdn/i4l/isdn_common.c
@@ -1640,13 +1640,7 @@ isdn_ioctl(struct file *file, uint cmd, ulong arg)
                        } else
                                return -EINVAL;
                case IIOCDBGVAR:
-                       if (arg) {
-                               if (copy_to_user(argp, &dev, sizeof(ulong)))
-                                       return -EFAULT;
-                               return 0;
-                       } else
-                               return -EINVAL;
-                       break;
+                       return -EINVAL;
                default:
                        if ((cmd & IIOCDRVCTL) == IIOCDRVCTL)
                                cmd = ((cmd >> _IOC_NRSHIFT) & _IOC_NRMASK) & ISDN_DRVIOCTL_MASK;