diff options
| author | xinhui.pan <xinhuix.pan@intel.com> | 2014-07-23 10:31:09 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-07-24 05:56:17 +0400 |
| commit | 850e93eb299dfe9379609d5755068d47b03954f8 (patch) | |
| tree | e60431dfd9e68d893e1a64d0decb5dbcecb0ab1f /drivers/tty/n_gsm.c | |
| parent | c2b703b807e3aba4d2b542c9096c790186a6e71f (diff) | |
| download | linux-850e93eb299dfe9379609d5755068d47b03954f8.tar.xz | |
tty/n_gsm.c: get gsm->num after gsm_activate_mux
gsm->num is the index of gsm_mux[], it's invalid before calling gsm_activate_mux.
Signed-off-by: xinhui.pan <xinhuiX.pan@intel.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/n_gsm.c')
| -rw-r--r-- | drivers/tty/n_gsm.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c index 2ebe47b78a3e..81e7ccbd9e4a 100644 --- a/drivers/tty/n_gsm.c +++ b/drivers/tty/n_gsm.c @@ -2230,8 +2230,7 @@ static int gsmld_output(struct gsm_mux *gsm, u8 *data, int len) static int gsmld_attach_gsm(struct tty_struct *tty, struct gsm_mux *gsm) { - int ret, i; - int base = gsm->num << 6; /* Base for this MUX */ + int ret, i, base; gsm->tty = tty_kref_get(tty); gsm->output = gsmld_output; @@ -2241,6 +2240,7 @@ static int gsmld_attach_gsm(struct tty_struct *tty, struct gsm_mux *gsm) else { /* Don't register device 0 - this is the control channel and not a usable tty interface */ + base = gsm->num << 6; /* Base for this MUX */ for (i = 1; i < NUM_DLCI; i++) tty_register_device(gsm_tty_driver, base + i, NULL); } |