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path: root/drivers/isdn/gigaset/interface.c
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Diffstat (limited to 'drivers/isdn/gigaset/interface.c')
-rw-r--r--drivers/isdn/gigaset/interface.c19
1 files changed, 12 insertions, 7 deletions
diff --git a/drivers/isdn/gigaset/interface.c b/drivers/isdn/gigaset/interface.c
index ac408acaaf1..08e4c4eea14 100644
--- a/drivers/isdn/gigaset/interface.c
+++ b/drivers/isdn/gigaset/interface.c
@@ -33,7 +33,7 @@ static int if_lock(struct cardstate *cs, int *arg)
}
if (!cmd && atomic_read(&cs->mstate) == MS_LOCKED
- && atomic_read(&cs->connected)) {
+ && cs->connected) {
cs->ops->set_modem_ctrl(cs, 0, TIOCM_DTR|TIOCM_RTS);
cs->ops->baud_rate(cs, B115200);
cs->ops->set_line_ctrl(cs, CS8);
@@ -107,6 +107,11 @@ static int if_config(struct cardstate *cs, int *arg)
if (atomic_read(&cs->mstate) != MS_LOCKED)
return -EBUSY;
+ if (!cs->connected) {
+ err("not connected!");
+ return -ENODEV;
+ }
+
*arg = 0;
return gigaset_enterconfigmode(cs);
}
@@ -246,7 +251,7 @@ static int if_ioctl(struct tty_struct *tty, struct file *file,
break;
case GIGASET_BRKCHARS:
//FIXME test if MS_LOCKED
- if (!atomic_read(&cs->connected)) {
+ if (!cs->connected) {
gig_dbg(DEBUG_ANY,
"can't communicate with unplugged device");
retval = -ENODEV;
@@ -327,7 +332,7 @@ static int if_tiocmset(struct tty_struct *tty, struct file *file,
if (mutex_lock_interruptible(&cs->mutex))
return -ERESTARTSYS; // FIXME -EINTR?
- if (!atomic_read(&cs->connected)) {
+ if (!cs->connected) {
gig_dbg(DEBUG_ANY, "can't communicate with unplugged device");
retval = -ENODEV;
} else {
@@ -362,7 +367,7 @@ static int if_write(struct tty_struct *tty, const unsigned char *buf, int count)
else if (atomic_read(&cs->mstate) != MS_LOCKED) {
warn("can't write to unlocked device");
retval = -EBUSY;
- } else if (!atomic_read(&cs->connected)) {
+ } else if (!cs->connected) {
gig_dbg(DEBUG_ANY, "can't write to unplugged device");
retval = -EBUSY; //FIXME
} else {
@@ -396,7 +401,7 @@ static int if_write_room(struct tty_struct *tty)
else if (atomic_read(&cs->mstate) != MS_LOCKED) {
warn("can't write to unlocked device");
retval = -EBUSY; //FIXME
- } else if (!atomic_read(&cs->connected)) {
+ } else if (!cs->connected) {
gig_dbg(DEBUG_ANY, "can't write to unplugged device");
retval = -EBUSY; //FIXME
} else
@@ -428,7 +433,7 @@ static int if_chars_in_buffer(struct tty_struct *tty)
else if (atomic_read(&cs->mstate) != MS_LOCKED) {
warn("can't write to unlocked device");
retval = -EBUSY;
- } else if (!atomic_read(&cs->connected)) {
+ } else if (!cs->connected) {
gig_dbg(DEBUG_ANY, "can't write to unplugged device");
retval = -EBUSY; //FIXME
} else
@@ -508,7 +513,7 @@ static void if_set_termios(struct tty_struct *tty, struct termios *old)
goto out;
}
- if (!atomic_read(&cs->connected)) {
+ if (!cs->connected) {
gig_dbg(DEBUG_ANY, "can't communicate with unplugged device");
goto out;
}