staging: dgrp: check return value of alloc_tty_driver
authorBill Pemberton <wfp5p@virginia.edu>
Tue, 9 Oct 2012 18:18:20 +0000 (14:18 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 17 Oct 2012 21:10:10 +0000 (14:10 -0700)
commit178e485a0ebbfdb7165b4363d8fea2a07d650c0b
treeff94d339f1dac78e5ab4236cb0bd56ec85516dfa
parentd7c4660c12adc5c66351253af381259686fa08a4
staging: dgrp: check return value of alloc_tty_driver

alloc_tty_driver was always assumed to succeed.  Add code to check the
return value and return -ENOMEM if alloc_tty_driver fails.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/dgrp/dgrp_tty.c