diff options
| author | Peter Hurley | 2013-03-06 08:38:20 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2013-03-18 16:13:59 -0700 |
| commit | 01a5e440c91dc6065cf3dbc38aa7276fc4ce2f26 (patch) | |
| tree | 681cd21901b56dca6046fbc9516bb74221fa8b7a /lib/Kconfig | |
| parent | 8c985d18b136c5d511445d15f0c6650003a8946b (diff) | |
n_tty: Lock access to tty->pgrp for POSIX job control
Concurrent access to tty->pgrp must be protected with tty->ctrl_lock.
Also, as noted in the comments, reading current->signal->tty is
safe because either,
1) current->signal->tty is assigned by current, or
2) current->signal->tty is set to NULL.
NB: for reference, tty_check_change() implements a similar POSIX
check for the ioctls corresponding to tcflush(), tcdrain(),
tcsetattr(), tcsetpgrp(), tcflow() and tcsendbreak().
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/Kconfig')
0 files changed, 0 insertions, 0 deletions