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| author | Jiri Slaby <jslaby@suse.cz> | 2012-11-19 20:11:42 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-11-21 15:13:36 -0800 |
| commit | 1862c14e107a5a21402852b0256b3c87bc1a5b00 (patch) | |
| tree | 37028a856466161cde73025bd69e0c50be5a026d /drivers/isdn | |
| parent | a547e5e0d8b85ccc640756eb40b3dd6b33796cf8 (diff) | |
| download | linux-1862c14e107a5a21402852b0256b3c87bc1a5b00.tar.gz linux-1862c14e107a5a21402852b0256b3c87bc1a5b00.tar.bz2 linux-1862c14e107a5a21402852b0256b3c87bc1a5b00.zip | |
TTY: isdn/gigaset destroy tty_port properly
Currently, the port may be destroyed twice or destroyed without being
initialized. Fix this by sticking the destroy call in the right place
as suggested by Tilman.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Reported-by: Tilman Schmidt <tilman@imap.cc>
Cc: Hansjoerg Lipp <hjlipp@web.de>
Cc: gigaset307x-common@lists.sourceforge.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/isdn')
| -rw-r--r-- | drivers/isdn/gigaset/common.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/drivers/isdn/gigaset/common.c b/drivers/isdn/gigaset/common.c index bc9d89a8c4f6..6849a11a1b24 100644 --- a/drivers/isdn/gigaset/common.c +++ b/drivers/isdn/gigaset/common.c @@ -507,6 +507,7 @@ void gigaset_freecs(struct cardstate *cs) gig_dbg(DEBUG_INIT, "clearing at_state"); clear_at_state(&cs->at_state); dealloc_temp_at_states(cs); + tty_port_destroy(&cs->port); /* fall through */ case 0: /* error in basic setup */ @@ -518,7 +519,6 @@ 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); @@ -752,14 +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_port; + goto error; } make_valid(cs, VALID_ID); ++cs->cs_init; gig_dbg(DEBUG_INIT, "setting up hw"); if (cs->ops->initcshw(cs) < 0) - goto error_port; + goto error; ++cs->cs_init; @@ -774,7 +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_port; + goto error; } } @@ -787,8 +787,7 @@ 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); |