A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-30 11:41:38 -04:00
Code Issues Projects Releases Packages Wiki Activity

pty: Add debug message for ptmx open

Browse source 
Opens of /dev/ptmx don't use tty_open() so debug messages are
not printed for those opens; print a debug message with the
open count (which must always be 1) if TTY_DEBUG_HANGUP is defined.

NB: Each tty core source file undefs support for debug messages.
The relevant source file must be patched/edited to enable these
messages.

Signed-off-by: Peter Hurley <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Peter Hurley 2015-07-12 22:49:13 -04:00 • committed by Greg Kroah-Hartman
commit d684779335
1 changed files with 8 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

8
drivers/tty/pty.c
View file

@ -26,6 +26,12 @@
#include <linux/mutex.h>
#include <linux/poll.h>
#undef TTY_DEBUG_HANGUP
#ifdef TTY_DEBUG_HANGUP
# define tty_debug_hangup(tty, f, args...) tty_debug(tty, f, ##args)
#else
# define tty_debug_hangup(tty, f, args...) do {} while (0)
#endif
#ifdef CONFIG_UNIX98_PTYS
static struct tty_driver *ptm_driver;
@ -779,6 +785,8 @@ static int ptmx_open(struct inode *inode, struct file *filp)
if (retval)
goto err_release;
tty_debug_hangup(tty, "(tty count=%d)\n", tty->count);
tty_unlock(tty);
return 0;
err_release: