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ti-st: use goto-failpath in st_core_init

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Use the classic failpath handling using gotos in st_core_init. That way,
tty_unregister_ldisc needs not be repeated on two places.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20210505091928.22010-21-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Slaby 2021-05-05 11:19:13 +02:00 • committed by Greg Kroah-Hartman
parent f6f19595a7
commit 303e8ebf5d
1 changed files with 7 additions and 5 deletions
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12
drivers/misc/ti-st/st_core.c
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@ -872,9 +872,8 @@ int st_core_init(struct st_data_s **core_data)
st_gdata = kzalloc(sizeof(struct st_data_s), GFP_KERNEL);
if (!st_gdata) {
pr_err("memory allocation failed");
tty_unregister_ldisc(&st_ldisc_ops);
err = -ENOMEM;
return err;
goto err_unreg_ldisc;
}
/* Initialize ST TxQ and Tx waitQ queue head. All BT/FM/GPS module skb's
@ -889,15 +888,18 @@ int st_core_init(struct st_data_s **core_data)
err = st_ll_init(st_gdata);
if (err) {
pr_err("error during st_ll initialization(%ld)", err);
kfree(st_gdata);
tty_unregister_ldisc(&st_ldisc_ops);
return err;
goto err_free_gdata;
}
INIT_WORK(&st_gdata->work_write_wakeup, work_fn_write_wakeup);
*core_data = st_gdata;
return 0;
err_free_gdata:
kfree(st_gdata);
err_unreg_ldisc:
tty_unregister_ldisc(&st_ldisc_ops);
return err;
}
void st_core_exit(struct st_data_s *st_gdata)