xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[PATCH] isdn4linux: Siemens Gigaset drivers: mutex conversion

Browse Source 
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>
This commit is contained in:
Tilman Schmidt
2006-04-10 22:55:12 -07:00
committed by Linus Torvalds
parent 01371500b2
commit abfd1dc7c1
4 changed files with 40 additions and 38 deletions
Download Patch File Download Diff File Expand all files Collapse all files

44
drivers/isdn/gigaset/interface.c
View File

@@ -160,7 +160,7 @@ static int if_open(struct tty_struct *tty, struct file *filp)
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 @@ static int if_open(struct tty_struct *tty, struct file *filp)
tty->low_latency = 1; //FIXME test
}
up(&cs->sem);
mutex_unlock(&cs->mutex);
return 0;
}
@@ -190,7 +190,7 @@ static void if_close(struct tty_struct *tty, struct file *filp)
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 @@ static void if_close(struct tty_struct *tty, struct file *filp)
}
}
up(&cs->sem);
mutex_unlock(&cs->mutex);
}
static int if_ioctl(struct tty_struct *tty, struct file *file,
@@ -222,7 +222,7 @@ static int if_ioctl(struct tty_struct *tty, struct file *file,
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 @@ static int if_ioctl(struct tty_struct *tty, struct file *file,
}
}
up(&cs->sem);
mutex_unlock(&cs->mutex);
return retval;
}
@@ -297,13 +297,13 @@ static int if_tiocmget(struct tty_struct *tty, struct file *file)
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 @@ static int if_tiocmset(struct tty_struct *tty, struct file *file,
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 @@ static int if_tiocmset(struct tty_struct *tty, struct file *file,
cs->control_state = mc;
}
up(&cs->sem);
mutex_unlock(&cs->mutex);
return retval;
}
@@ -354,7 +354,7 @@ static int if_write(struct tty_struct *tty, const unsigned char *buf, int count)
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 @@ static int if_write(struct tty_struct *tty, const unsigned char *buf, int count)
&cs->if_wake_tasklet);
}
up(&cs->sem);
mutex_unlock(&cs->mutex);
return retval;
}
@@ -388,7 +388,7 @@ static int if_write_room(struct tty_struct *tty)
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 @@ static int if_write_room(struct tty_struct *tty)
} else
retval = cs->ops->write_room(cs);
up(&cs->sem);
mutex_unlock(&cs->mutex);
return retval;
}
@@ -420,7 +420,7 @@ static int if_chars_in_buffer(struct tty_struct *tty)
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 @@ static int if_chars_in_buffer(struct tty_struct *tty)
} else
retval = cs->ops->chars_in_buffer(cs);
up(&cs->sem);
mutex_unlock(&cs->mutex);
return retval;
}
@@ -451,7 +451,7 @@ static void if_throttle(struct tty_struct *tty)
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 @@ static void if_throttle(struct tty_struct *tty)
//FIXME
}
up(&cs->sem);
mutex_unlock(&cs->mutex);
}
static void if_unthrottle(struct tty_struct *tty)
@@ -474,7 +474,7 @@ static void if_unthrottle(struct tty_struct *tty)
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 @@ static void if_unthrottle(struct tty_struct *tty)
//FIXME
}
up(&cs->sem);
mutex_unlock(&cs->mutex);
}
static void if_set_termios(struct tty_struct *tty, struct termios *old)
@@ -501,7 +501,7 @@ static void if_set_termios(struct tty_struct *tty, struct termios *old)
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 @@ static void if_set_termios(struct tty_struct *tty, struct termios *old)
cs->control_state = control_state;
out:
up(&cs->sem);
mutex_unlock(&cs->mutex);
}