drivers/char/vt_ioctl.c: fix VT_OPENQRY error value
authorGraham Gower <graham.gower@gmail.com>
Wed, 27 Oct 2010 22:33:00 +0000 (15:33 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 28 Oct 2010 01:03:05 +0000 (18:03 -0700)
commit1e0ad2881d50becaeea70ec696a80afeadf944d2
tree8286323de610f8e939cc6e9c2ccfd139a92d9e91
parent8881cdceb25b4fcebfb17a9548ed80c22cf8b066
drivers/char/vt_ioctl.c: fix VT_OPENQRY error value

When all VT's are in use, VT_OPENQRY casts -1 to unsigned char before
returning it to userspace as an int.  VT255 is not the next available
console.

Signed-off-by: Graham Gower <graham.gower@gmail.com>
Cc: Greg KH <greg@kroah.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drivers/char/vt_ioctl.c