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| author | Peter Hurley <peter@hurleysoftware.com> | 2013-03-11 16:44:37 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-03-18 16:46:30 -0700 |
| commit | 96433d104a4b39c43dd6f57776f9fcb765111a56 (patch) | |
| tree | 543ccce91da6c79ca24f97d9aae5352ce23e5613 | |
| parent | c8785241741d4bc3ee6da2ff415a9a1b3df2b4cb (diff) | |
| download | linux-96433d104a4b39c43dd6f57776f9fcb765111a56.tar.bz2 | |
tty: Bracket ldisc release with TTY_DEBUG_HANGUP messages
Expected typical log output:
[ 2.437211] tty_open: opening pts1...
[ 2.443376] tty_open: opening pts5...
[ 2.447830] tty_release: ptm0 (tty count=1)...
[ 2.447849] pts0 vhangup...
[ 2.447865] tty_release: ptm0: final close
[ 2.447876] tty_release: ptm0: freeing structure...
[ 2.451634] tty_release: tty1 (tty count=1)...
[ 2.451638] tty_release: tty1: final close
[ 2.451654] tty_release: tty1: freeing structure...
[ 2.452505] tty_release: pts5 (tty count=2)...
[ 2.453029] tty_open: opening pts0...
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/tty/tty_io.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index 95e97128e2ee..f6ce2c5fbe5b 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -1836,7 +1836,7 @@ int tty_release(struct inode *inode, struct file *filp) return 0; #ifdef TTY_DEBUG_HANGUP - printk(KERN_DEBUG "%s: freeing tty structure...\n", __func__); + printk(KERN_DEBUG "%s: %s: final close\n", __func__, tty_name(tty, buf)); #endif /* * Ask the line discipline code to release its structures @@ -1848,6 +1848,9 @@ int tty_release(struct inode *inode, struct file *filp) if (o_tty) tty_flush_works(o_tty); +#ifdef TTY_DEBUG_HANGUP + printk(KERN_DEBUG "%s: %s: freeing structure...\n", __func__, tty_name(tty, buf)); +#endif /* * The release_tty function takes care of the details of clearing * the slots and preserving the termios structure. The tty_unlock_pair |