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

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Commit 421b40a628 ("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 <rosslagerwall@gmail.com>
Tested-by: Mikael Pettersson <mikpe@it.uu.se>
Acked-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ross Lagerwall 2013-06-14 23:24:25 +01:00 committed by Greg Kroah-Hartman
parent 7d13205581
commit ef223fb3d1
1 changed files with 1 additions and 4 deletions
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5
drivers/tty/vt/vt_ioctl.c
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@ -289,13 +289,10 @@ static int vt_disallocate(unsigned int vc_num)
struct vc_data *vc = NULL;
int ret = 0;
if (!vc_num)
return 0;
console_lock();
if (VT_BUSY(vc_num))
ret = -EBUSY;
else
else if (vc_num)
vc = vc_deallocate(vc_num);
console_unlock();