[patch v2] tty: define tty_open_by_driver when CONFIG_TTY is not defined

From: Okash Khawaja
Date: Sat Jun 17 2017 - 17:33:32 EST

This patch adds definition of tty_open_by_driver when CONFIG_TTY is not
defined. This was supposed to have been included in commit
12e84c71b7d4ee38d51377fd494ac748ee4e6912 ("tty: export
tty_open_by_driver"). The patch follows convention for other such
functions and returns NULL.

Signed-off-by: Okash Khawaja <okash.khawaja@xxxxxxxxx>

include/linux/tty.h | 3 +++
1 file changed, 3 insertions(+)

--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -422,6 +422,9 @@ static inline int __init tty_init(void)
{ return 0; }
static inline const char *tty_name(const struct tty_struct *tty)
{ return "(none)"; }
+static inline struct tty_struct *tty_open_by_driver(dev_t device,
+ struct inode *inode, struct file *filp)
+{ return NULL; }

extern struct ktermios tty_std_termios;