[PATCH] isdn4linux: Siemens Gigaset drivers: mutex conversion
With Hansjoerg Lipp <hjlipp@web.de>
Convert the semaphores used by the Gigaset drivers to mutexes.
Signed-off-by: Hansjoerg Lipp <hjlipp@web.de>
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Cc: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/isdn/gigaset/interface.c b/drivers/isdn/gigaset/interface.c
index 2575086..ac408ac 100644
--- a/drivers/isdn/gigaset/interface.c
+++ b/drivers/isdn/gigaset/interface.c
@@ -160,7 +160,7 @@
if (!cs)
return -ENODEV;
- if (down_interruptible(&cs->sem))
+ if (mutex_lock_interruptible(&cs->mutex))
return -ERESTARTSYS; // FIXME -EINTR?
tty->driver_data = cs;
@@ -173,7 +173,7 @@
tty->low_latency = 1; //FIXME test
}
- up(&cs->sem);
+ mutex_unlock(&cs->mutex);
return 0;
}
@@ -190,7 +190,7 @@
gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
- down(&cs->sem);
+ mutex_lock(&cs->mutex);
if (!cs->open_count)
warn("%s: device not opened", __func__);
@@ -202,7 +202,7 @@
}
}
- up(&cs->sem);
+ mutex_unlock(&cs->mutex);
}
static int if_ioctl(struct tty_struct *tty, struct file *file,
@@ -222,7 +222,7 @@
gig_dbg(DEBUG_IF, "%u: %s(0x%x)", cs->minor_index, __func__, cmd);
- if (down_interruptible(&cs->sem))
+ if (mutex_lock_interruptible(&cs->mutex))
return -ERESTARTSYS; // FIXME -EINTR?
if (!cs->open_count)
@@ -279,7 +279,7 @@
}
}
- up(&cs->sem);
+ mutex_unlock(&cs->mutex);
return retval;
}
@@ -297,13 +297,13 @@
gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
- if (down_interruptible(&cs->sem))
+ if (mutex_lock_interruptible(&cs->mutex))
return -ERESTARTSYS; // FIXME -EINTR?
// FIXME read from device?
retval = cs->control_state & (TIOCM_RTS|TIOCM_DTR);
- up(&cs->sem);
+ mutex_unlock(&cs->mutex);
return retval;
}
@@ -324,7 +324,7 @@
gig_dbg(DEBUG_IF, "%u: %s(0x%x, 0x%x)",
cs->minor_index, __func__, set, clear);
- if (down_interruptible(&cs->sem))
+ if (mutex_lock_interruptible(&cs->mutex))
return -ERESTARTSYS; // FIXME -EINTR?
if (!atomic_read(&cs->connected)) {
@@ -336,7 +336,7 @@
cs->control_state = mc;
}
- up(&cs->sem);
+ mutex_unlock(&cs->mutex);
return retval;
}
@@ -354,7 +354,7 @@
gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
- if (down_interruptible(&cs->sem))
+ if (mutex_lock_interruptible(&cs->mutex))
return -ERESTARTSYS; // FIXME -EINTR?
if (!cs->open_count)
@@ -370,7 +370,7 @@
&cs->if_wake_tasklet);
}
- up(&cs->sem);
+ mutex_unlock(&cs->mutex);
return retval;
}
@@ -388,7 +388,7 @@
gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
- if (down_interruptible(&cs->sem))
+ if (mutex_lock_interruptible(&cs->mutex))
return -ERESTARTSYS; // FIXME -EINTR?
if (!cs->open_count)
@@ -402,7 +402,7 @@
} else
retval = cs->ops->write_room(cs);
- up(&cs->sem);
+ mutex_unlock(&cs->mutex);
return retval;
}
@@ -420,7 +420,7 @@
gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
- if (down_interruptible(&cs->sem))
+ if (mutex_lock_interruptible(&cs->mutex))
return -ERESTARTSYS; // FIXME -EINTR?
if (!cs->open_count)
@@ -434,7 +434,7 @@
} else
retval = cs->ops->chars_in_buffer(cs);
- up(&cs->sem);
+ mutex_unlock(&cs->mutex);
return retval;
}
@@ -451,7 +451,7 @@
gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
- down(&cs->sem);
+ mutex_lock(&cs->mutex);
if (!cs->open_count)
warn("%s: device not opened", __func__);
@@ -459,7 +459,7 @@
//FIXME
}
- up(&cs->sem);
+ mutex_unlock(&cs->mutex);
}
static void if_unthrottle(struct tty_struct *tty)
@@ -474,7 +474,7 @@
gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
- down(&cs->sem);
+ mutex_lock(&cs->mutex);
if (!cs->open_count)
warn("%s: device not opened", __func__);
@@ -482,7 +482,7 @@
//FIXME
}
- up(&cs->sem);
+ mutex_unlock(&cs->mutex);
}
static void if_set_termios(struct tty_struct *tty, struct termios *old)
@@ -501,7 +501,7 @@
gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
- down(&cs->sem);
+ mutex_lock(&cs->mutex);
if (!cs->open_count) {
warn("%s: device not opened", __func__);
@@ -586,7 +586,7 @@
cs->control_state = control_state;
out:
- up(&cs->sem);
+ mutex_unlock(&cs->mutex);
}