autofs4: fix invalid ioctl return in autofs4_root_ioctl_unlocked()

The return from an ioctl if an invalid ioctl is passed in should be EINVAL
not ENOSYS.

Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
index 101879ed764ca0f3cb073f71c33396fb277db9e9..aa8228eb104b8fe7f47eea1f36de730daa003d5c 100644 (file)
--- a/fs/autofs4/root.c
+++ b/fs/autofs4/root.c
@@ -914,7 +914,7 @@ static int autofs4_root_ioctl_unlocked(struct inode *inode, struct file *filp,
                                            filp->f_path.mnt, sbi, p);
 
        default:
-               return -ENOSYS;
+               return -EINVAL;
        }
 }