From d55435037539837a741d54690427d37f96ed87fa Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Wed, 23 Mar 2011 10:48:32 +0100 Subject: [PATCH] TTY: unify tty_init_dev 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 Cc: Alan Cox Cc: Julian Anastasov Signed-off-by: Greg Kroah-Hartman --- drivers/tty/tty_io.c | 23 ++++++++++++----------- 1 file changed, 12 insertions(+), 11 deletions(-) diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index 188632e4734d..026bf2f6f5f2 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -1391,16 +1391,15 @@ struct tty_struct *tty_init_dev(struct tty_driver *driver, int idx, return ERR_PTR(-ENODEV); tty = alloc_tty_struct(); - if (!tty) - goto fail_no_mem; + if (!tty) { + retval = -ENOMEM; + goto err_module_put; + } initialize_tty_struct(tty, driver, idx); retval = tty_driver_install_tty(driver, tty); - if (retval < 0) { - free_tty_struct(tty); - module_put(driver->owner); - return ERR_PTR(retval); - } + if (retval < 0) + goto err_free_tty; /* * Structures all installed ... call the ldisc open routines. @@ -1409,15 +1408,17 @@ struct tty_struct *tty_init_dev(struct tty_driver *driver, int idx, */ retval = tty_ldisc_setup(tty, tty->link); if (retval) - goto release_mem_out; + goto err_release_tty; return tty; -fail_no_mem: +err_free_tty: + free_tty_struct(tty); +err_module_put: module_put(driver->owner); - return ERR_PTR(-ENOMEM); + return ERR_PTR(retval); /* call the tty release_tty routine to clean out this slot */ -release_mem_out: +err_release_tty: if (printk_ratelimit()) printk(KERN_INFO "tty_init_dev: ldisc open failed, " "clearing slot %d\n", idx); -- 2.20.1