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| author | Rasmus Villemoes <linux@rasmusvillemoes.dk> | 2014-07-10 21:01:22 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-07-11 17:54:28 -0700 |
| commit | 2c964a2f4191f2229566895f1a0e85f8339f5dd1 (patch) | |
| tree | f83c3259629e2b8416e96a03bcee8c6dc52bd9ca /drivers/tty/tty_io.c | |
| parent | 493671a2cecbb75d5b1aee6959bef1ecb38b932d (diff) | |
| download | op-kernel-dev-2c964a2f4191f2229566895f1a0e85f8339f5dd1.zip op-kernel-dev-2c964a2f4191f2229566895f1a0e85f8339f5dd1.tar.gz | |
drivers: tty: Merge alloc_tty_struct and initialize_tty_struct
The two functions alloc_tty_struct and initialize_tty_struct are
always called together. Merge them into alloc_tty_struct, updating its
prototype and the only two callers of these functions.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/tty_io.c')
| -rw-r--r-- | drivers/tty/tty_io.c | 37 |
1 files changed, 13 insertions, 24 deletions
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index 714320b..8fbad34 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -157,20 +157,6 @@ static void __proc_set_tty(struct task_struct *tsk, struct tty_struct *tty); static void proc_set_tty(struct task_struct *tsk, struct tty_struct *tty); /** - * alloc_tty_struct - allocate a tty object - * - * Return a new empty tty structure. The data fields have not - * been initialized in any way but has been zeroed - * - * Locking: none - */ - -struct tty_struct *alloc_tty_struct(void) -{ - return kzalloc(sizeof(struct tty_struct), GFP_KERNEL); -} - -/** * free_tty_struct - free a disused tty * @tty: tty struct to free * @@ -1455,12 +1441,11 @@ struct tty_struct *tty_init_dev(struct tty_driver *driver, int idx) if (!try_module_get(driver->owner)) return ERR_PTR(-ENODEV); - tty = alloc_tty_struct(); + tty = alloc_tty_struct(driver, idx); if (!tty) { retval = -ENOMEM; goto err_module_put; } - initialize_tty_struct(tty, driver, idx); tty_lock(tty); retval = tty_driver_install_tty(driver, tty); @@ -3003,19 +2988,21 @@ static struct device *tty_get_device(struct tty_struct *tty) /** - * initialize_tty_struct - * @tty: tty to initialize + * alloc_tty_struct * - * This subroutine initializes a tty structure that has been newly - * allocated. + * This subroutine allocates and initializes a tty structure. * - * Locking: none - tty in question must not be exposed at this point + * Locking: none - tty in question is not exposed at this point */ -void initialize_tty_struct(struct tty_struct *tty, - struct tty_driver *driver, int idx) +struct tty_struct *alloc_tty_struct(struct tty_driver *driver, int idx) { - memset(tty, 0, sizeof(struct tty_struct)); + struct tty_struct *tty; + + tty = kzalloc(sizeof(*tty), GFP_KERNEL); + if (!tty) + return NULL; + kref_init(&tty->kref); tty->magic = TTY_MAGIC; tty_ldisc_init(tty); @@ -3039,6 +3026,8 @@ void initialize_tty_struct(struct tty_struct *tty, tty->index = idx; tty_line_name(driver, idx, tty->name); tty->dev = tty_get_device(tty); + + return tty; } /** |
