From 96433d104a4b39c43dd6f57776f9fcb765111a56 Mon Sep 17 00:00:00 2001 From: Peter Hurley Date: Mon, 11 Mar 2013 16:44:37 -0400 Subject: [PATCH] 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 Signed-off-by: Greg Kroah-Hartman --- drivers/tty/tty_io.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index 95e97128e2e..f6ce2c5fbe5 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 -- 2.20.1