From dfdbf3f6e2d279f2a46ed95614cb4bf07657394d Mon Sep 17 00:00:00 2001 From: Ian Wisbon Date: Tue, 15 Feb 2011 15:53:51 -0500 Subject: Digi del-5.6 Complete --- drivers/isdn/gigaset/interface.c | 19 +++++++------------ 1 file changed, 7 insertions(+), 12 deletions(-) (limited to 'drivers/isdn/gigaset/interface.c') diff --git a/drivers/isdn/gigaset/interface.c b/drivers/isdn/gigaset/interface.c index 8ff7e35c7069..f33ac27de643 100644 --- a/drivers/isdn/gigaset/interface.c +++ b/drivers/isdn/gigaset/interface.c @@ -408,33 +408,28 @@ static int if_write_room(struct tty_struct *tty) return retval; } -/* FIXME: This function does not have error returns */ - static int if_chars_in_buffer(struct tty_struct *tty) { struct cardstate *cs; - int retval = -ENODEV; + int retval = 0; cs = (struct cardstate *) tty->driver_data; if (!cs) { pr_err("%s: no cardstate\n", __func__); - return -ENODEV; + return 0; } gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__); - if (mutex_lock_interruptible(&cs->mutex)) - return -ERESTARTSYS; // FIXME -EINTR? + mutex_lock(&cs->mutex); - if (!cs->connected) { + if (!cs->connected) gig_dbg(DEBUG_IF, "not connected"); - retval = -ENODEV; - } else if (!cs->open_count) + else if (!cs->open_count) dev_warn(cs->dev, "%s: device not opened\n", __func__); - else if (cs->mstate != MS_LOCKED) { + else if (cs->mstate != MS_LOCKED) dev_warn(cs->dev, "can't write to unlocked device\n"); - retval = -EBUSY; - } else + else retval = cs->ops->chars_in_buffer(cs); mutex_unlock(&cs->mutex); -- cgit v1.2.3