diff options
| author | Jiri Slaby <jslaby@suse.cz> | 2012-11-15 08:49:56 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-11-16 01:20:58 (GMT) |
| commit | 191c5f10275cfbb36802edadbdb10c73537327b4 (patch) | |
| tree | 93e6f0d57cb1295fb7c461dbe5ecefafeb4ad15a /drivers/isdn | |
| parent | d0f59141ca40159c9d142c0f62e9aea61f846539 (diff) | |
| download | linux-191c5f10275cfbb36802edadbdb10c73537327b4.tar.xz | |
TTY: call tty_port_destroy in the rest of drivers
After commit "TTY: move tty buffers to tty_port", the tty buffers are
not freed in some drivers. This is because tty_port_destructor is not
called whenever a tty_port is freed. This was an assumption I counted
with but was unfortunately untrue. So fix the drivers to fulfil this
assumption.
To be sure, the TTY buffers (and later some stuff) are gone along with
the tty_port, we have to call tty_port_destroy at tear-down places.
This is mostly where the structure containing a tty_port is freed.
This patch does exactly that -- put tty_port_destroy at those places.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/isdn')
| -rw-r--r-- | drivers/isdn/gigaset/common.c | 10 | ||||
| -rw-r--r-- | drivers/isdn/i4l/isdn_tty.c | 4 |
2 files changed, 10 insertions, 4 deletions
diff --git a/drivers/isdn/gigaset/common.c b/drivers/isdn/gigaset/common.c index 30a6b17..bc9d89a 100644 --- a/drivers/isdn/gigaset/common.c +++ b/drivers/isdn/gigaset/common.c @@ -518,6 +518,7 @@ f_bcs: gig_dbg(DEBUG_INIT, "freeing bcs[]"); kfree(cs->bcs); f_cs: gig_dbg(DEBUG_INIT, "freeing cs"); mutex_unlock(&cs->mutex); + tty_port_destroy(&cs->port); free_cs(cs); } EXPORT_SYMBOL_GPL(gigaset_freecs); @@ -751,14 +752,14 @@ struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels, gig_dbg(DEBUG_INIT, "setting up iif"); if (gigaset_isdn_regdev(cs, modulename) < 0) { pr_err("error registering ISDN device\n"); - goto error; + goto error_port; } make_valid(cs, VALID_ID); ++cs->cs_init; gig_dbg(DEBUG_INIT, "setting up hw"); if (cs->ops->initcshw(cs) < 0) - goto error; + goto error_port; ++cs->cs_init; @@ -773,7 +774,7 @@ struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels, gig_dbg(DEBUG_INIT, "setting up bcs[%d]", i); if (gigaset_initbcs(cs->bcs + i, cs, i) < 0) { pr_err("could not allocate channel %d data\n", i); - goto error; + goto error_port; } } @@ -786,7 +787,8 @@ struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels, gig_dbg(DEBUG_INIT, "cs initialized"); return cs; - +error_port: + tty_port_destroy(&cs->port); error: gig_dbg(DEBUG_INIT, "failed"); gigaset_freecs(cs); diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c index b817809..e09dc8a 100644 --- a/drivers/isdn/i4l/isdn_tty.c +++ b/drivers/isdn/i4l/isdn_tty.c @@ -1849,6 +1849,8 @@ err_unregister: kfree(info->fax); #endif kfree(info->port.xmit_buf - 4); + info->port.xmit_buf = NULL; + tty_port_destroy(&info->port); } tty_unregister_driver(m->tty_modem); err: @@ -1870,6 +1872,8 @@ isdn_tty_exit(void) kfree(info->fax); #endif kfree(info->port.xmit_buf - 4); + info->port.xmit_buf = NULL; + tty_port_destroy(&info->port); } tty_unregister_driver(dev->mdm.tty_modem); put_tty_driver(dev->mdm.tty_modem); |