tty/vt: Return EBUSY if deallocating VT1 and it is busy
tty/vt: Return EBUSY if deallocating VT1 and it is busy

Commit 421b40a6286e ("tty/vt: Fix vc_deallocate() lock order") changed
the behavior when deallocating VT 1.  Previously if trying to
deallocate VT1 and it is busy, we would return EBUSY.  The commit
changed this to return 0 (success).

This commit restores the old behavior.

Signed-off-by: Ross Lagerwall <fc5e34b58cc89440361196388af610af47c81e07@gmail.com>
Tested-by: Mikael Pettersson <5a121dcf2ef22469a1bfc77a94db5b725c29d263@it.uu.se>
Acked-by: Peter Hurley <4b8373d016f277527198385ba72fda0feb5da015@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@linuxfoundation.org>

KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs