diff options
| author | Jens Taprogge <jens.taprogge@taprogge.org> | 2012-09-12 14:55:40 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-09-12 09:56:02 -0700 |
| commit | 2afb41d9d30d33504c47a5dda3eeade692f388dc (patch) | |
| tree | 458592968882278ac09ffcf264ba2c120175ec49 /drivers | |
| parent | 1adda49706ff832e9fc4f4bcb62d38285145307c (diff) | |
Staging: ipack/devices/ipoctal: Check tty_register_device return value.
Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org>
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/staging/ipack/devices/ipoctal.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/staging/ipack/devices/ipoctal.c b/drivers/staging/ipack/devices/ipoctal.c index b84ab5eb4b11..737127033cff 100644 --- a/drivers/staging/ipack/devices/ipoctal.c +++ b/drivers/staging/ipack/devices/ipoctal.c @@ -437,6 +437,8 @@ static int ipoctal_inst_slot(struct ipoctal *ipoctal, unsigned int bus_nr, ipoctal->tty_drv = tty; for (i = 0; i < NR_CHANNELS; i++) { + struct device *tty_dev; + channel = &ipoctal->channel[i]; tty_port_init(&channel->tty_port); tty_port_alloc_xmit_buf(&channel->tty_port); @@ -450,7 +452,11 @@ static int ipoctal_inst_slot(struct ipoctal *ipoctal, unsigned int bus_nr, channel->pointer_read = 0; channel->pointer_write = 0; channel->nb_bytes = 0; - tty_register_device(tty, i, NULL); + tty_dev = tty_register_device(tty, i, NULL); + if (IS_ERR(tty_dev)) { + dev_err(&ipoctal->dev->dev, "Failed to register tty device.\n"); + continue; + } /* * Enable again the RX. TX will be enabled when |