diff options
| author | Jiri Slaby <jslaby@suse.cz> | 2012-06-04 15:35:26 +0400 |
|---|---|---|
| committer | Richard Weinberger <richard@nod.at> | 2012-07-28 19:47:58 +0400 |
| commit | 060ed31dd9ede0726f8c88aff36c6cd8ec6d0fe8 (patch) | |
| tree | 8707cad6d39fc374b7a3983eda6e94a444a9afff /arch | |
| parent | 28a33cbc24e4256c143dce96c7d93bf423229f92 (diff) | |
| download | linux-060ed31dd9ede0726f8c88aff36c6cd8ec6d0fe8.tar.xz | |
TTY: um/line, add tty_port
And use count from there.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: user-mode-linux-devel@lists.sourceforge.net
Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/um/drivers/line.c | 7 | ||||
| -rw-r--r-- | arch/um/drivers/line.h | 2 |
2 files changed, 5 insertions, 4 deletions
diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c index acfd0e0fd0c9..482a7bd4a64c 100644 --- a/arch/um/drivers/line.c +++ b/arch/um/drivers/line.c @@ -404,7 +404,7 @@ int line_open(struct line *lines, struct tty_struct *tty) goto out_unlock; err = 0; - if (line->count++) + if (line->port.count++) goto out_unlock; BUG_ON(tty->driver_data); @@ -446,7 +446,7 @@ void line_close(struct tty_struct *tty, struct file * filp) mutex_lock(&line->count_lock); BUG_ON(!line->valid); - if (--line->count) + if (--line->port.count) goto out_unlock; line->tty = NULL; @@ -478,7 +478,7 @@ int setup_one_line(struct line *lines, int n, char *init, mutex_lock(&line->count_lock); - if (line->count) { + if (line->port.count) { *error_out = "Device is already open"; goto out; } @@ -663,6 +663,7 @@ int register_lines(struct line_driver *line_driver, driver->init_termios = tty_std_termios; for (i = 0; i < nlines; i++) { + tty_port_init(&lines[i].port); spin_lock_init(&lines[i].lock); mutex_init(&lines[i].count_lock); lines[i].driver = line_driver; diff --git a/arch/um/drivers/line.h b/arch/um/drivers/line.h index 0a1834719dba..0e06a1f441d7 100644 --- a/arch/um/drivers/line.h +++ b/arch/um/drivers/line.h @@ -32,9 +32,9 @@ struct line_driver { }; struct line { + struct tty_port port; struct tty_struct *tty; struct mutex count_lock; - unsigned long count; int valid; char *init_str; |