diff options
author | Daeseok Youn <daeseok.youn@gmail.com> | 2016-09-26 09:46:48 +0900 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-09-27 13:12:26 +0200 |
commit | 1cd7c06213eaeb6c045983ebed8be866938c42b5 (patch) | |
tree | 101da4270ee0006e499382e211d5a578cc49aa5d /drivers/staging/dgnc/dgnc_tty.c | |
parent | 33ccb442aa6b133c7c32aec02b633b11878e04e9 (diff) |
staging: dgnc: remove useless variables
The dgnc_major_serial_registered and dgnc_major_serial_registered
do not need to use to check whether the tty driver is registered or not.
These variables are used only in dgnc_cleanup_tty() function,
This function will be called normally with initialized board structure.
It means the dgnc_cleanup_tty() cannot be called with unregistered tty.
Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/dgnc/dgnc_tty.c')
-rw-r--r-- | drivers/staging/dgnc/dgnc_tty.c | 64 |
1 files changed, 25 insertions, 39 deletions
diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c index 673c455ea330..e93c0c892b91 100644 --- a/drivers/staging/dgnc/dgnc_tty.c +++ b/drivers/staging/dgnc/dgnc_tty.c @@ -204,15 +204,11 @@ int dgnc_tty_register(struct dgnc_board *brd) */ tty_set_operations(brd->serial_driver, &dgnc_tty_ops); - if (!brd->dgnc_major_serial_registered) { - /* Register tty devices */ - rc = tty_register_driver(brd->serial_driver); - if (rc < 0) { - dev_dbg(&brd->pdev->dev, - "Can't register tty device (%d)\n", rc); - goto free_serial_driver; - } - brd->dgnc_major_serial_registered = true; + rc = tty_register_driver(brd->serial_driver); + if (rc < 0) { + dev_dbg(&brd->pdev->dev, + "Can't register tty device (%d)\n", rc); + goto free_serial_driver; } /* @@ -247,16 +243,12 @@ int dgnc_tty_register(struct dgnc_board *brd) */ tty_set_operations(brd->print_driver, &dgnc_tty_ops); - if (!brd->dgnc_major_transparent_print_registered) { - /* Register Transparent Print devices */ - rc = tty_register_driver(brd->print_driver); - if (rc < 0) { - dev_dbg(&brd->pdev->dev, - "Can't register Transparent Print device(%d)\n", - rc); - goto free_print_driver; - } - brd->dgnc_major_transparent_print_registered = true; + rc = tty_register_driver(brd->print_driver); + if (rc < 0) { + dev_dbg(&brd->pdev->dev, + "Can't register Transparent Print device(%d)\n", + rc); + goto free_print_driver; } dgnc_BoardsByMajor[brd->serial_driver->major] = brd; @@ -396,29 +388,23 @@ void dgnc_cleanup_tty(struct dgnc_board *brd) { int i = 0; - if (brd->dgnc_major_serial_registered) { - dgnc_BoardsByMajor[brd->serial_driver->major] = NULL; - for (i = 0; i < brd->nasync; i++) { - if (brd->channels[i]) - dgnc_remove_tty_sysfs(brd->channels[i]-> - ch_tun.un_sysfs); - tty_unregister_device(brd->serial_driver, i); - } - tty_unregister_driver(brd->serial_driver); - brd->dgnc_major_serial_registered = false; + dgnc_BoardsByMajor[brd->serial_driver->major] = NULL; + for (i = 0; i < brd->nasync; i++) { + if (brd->channels[i]) + dgnc_remove_tty_sysfs(brd->channels[i]-> + ch_tun.un_sysfs); + tty_unregister_device(brd->serial_driver, i); } + tty_unregister_driver(brd->serial_driver); - if (brd->dgnc_major_transparent_print_registered) { - dgnc_BoardsByMajor[brd->print_driver->major] = NULL; - for (i = 0; i < brd->nasync; i++) { - if (brd->channels[i]) - dgnc_remove_tty_sysfs(brd->channels[i]-> - ch_pun.un_sysfs); - tty_unregister_device(brd->print_driver, i); - } - tty_unregister_driver(brd->print_driver); - brd->dgnc_major_transparent_print_registered = false; + dgnc_BoardsByMajor[brd->print_driver->major] = NULL; + for (i = 0; i < brd->nasync; i++) { + if (brd->channels[i]) + dgnc_remove_tty_sysfs(brd->channels[i]-> + ch_pun.un_sysfs); + tty_unregister_device(brd->print_driver, i); } + tty_unregister_driver(brd->print_driver); put_tty_driver(brd->serial_driver); put_tty_driver(brd->print_driver); |