TTY: unify pty_unix98_install fail path handling
Change it so that we call the deinit functions at one place at the end
of the function (by gotos). And while at it use some sane label names.
This is a preparation for the deinitialization of tty in the next
patch.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index f511918..b25d6c4 100644
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -560,20 +560,19 @@
return -ENOMEM;
if (!try_module_get(driver->other->owner)) {
/* This cannot in fact currently happen */
- free_tty_struct(o_tty);
- return -ENOMEM;
+ goto err_free_tty;
}
initialize_tty_struct(o_tty, driver->other, idx);
tty->termios = kzalloc(sizeof(struct ktermios[2]), GFP_KERNEL);
if (tty->termios == NULL)
- goto free_mem_out;
+ goto err_free_mem;
*tty->termios = driver->init_termios;
tty->termios_locked = tty->termios + 1;
o_tty->termios = kzalloc(sizeof(struct ktermios[2]), GFP_KERNEL);
if (o_tty->termios == NULL)
- goto free_mem_out;
+ goto err_free_mem;
*o_tty->termios = driver->other->init_termios;
o_tty->termios_locked = o_tty->termios + 1;
@@ -592,11 +591,12 @@
tty->count++;
pty_count++;
return 0;
-free_mem_out:
+err_free_mem:
kfree(o_tty->termios);
- module_put(o_tty->driver->owner);
- free_tty_struct(o_tty);
kfree(tty->termios);
+ module_put(o_tty->driver->owner);
+err_free_tty:
+ free_tty_struct(o_tty);
return -ENOMEM;
}