From 14cc3e2b633bb64063698980974df4535368e98f Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Sun, 26 Mar 2006 01:37:14 -0800
Subject: [PATCH] sem2mutex: misc static one-file mutexes

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Dave Jones <davej@codemonkey.org.uk>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Jens Axboe <axboe@suse.de>
Cc: Neil Brown <neilb@cse.unsw.edu.au>
Acked-by: Alasdair G Kergon <agk@redhat.com>
Cc: Greg KH <greg@kroah.com>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Adam Belay <ambx1@neo.rr.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 drivers/telephony/phonedev.c | 21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)

(limited to 'drivers/telephony/phonedev.c')

diff --git a/drivers/telephony/phonedev.c b/drivers/telephony/phonedev.c
index 3c987f49f6b..7a6db1c5c8c 100644
--- a/drivers/telephony/phonedev.c
+++ b/drivers/telephony/phonedev.c
@@ -29,6 +29,7 @@
 #include <linux/kmod.h>
 #include <linux/sem.h>
 #include <linux/devfs_fs_kernel.h>
+#include <linux/mutex.h>
 
 #define PHONE_NUM_DEVICES	256
 
@@ -37,7 +38,7 @@
  */
 
 static struct phone_device *phone_device[PHONE_NUM_DEVICES];
-static DECLARE_MUTEX(phone_lock);
+static DEFINE_MUTEX(phone_lock);
 
 /*
  *    Open a phone device.
@@ -53,14 +54,14 @@ static int phone_open(struct inode *inode, struct file *file)
 	if (minor >= PHONE_NUM_DEVICES)
 		return -ENODEV;
 
-	down(&phone_lock);
+	mutex_lock(&phone_lock);
 	p = phone_device[minor];
 	if (p)
 		new_fops = fops_get(p->f_op);
 	if (!new_fops) {
-		up(&phone_lock);
+		mutex_unlock(&phone_lock);
 		request_module("char-major-%d-%d", PHONE_MAJOR, minor);
-		down(&phone_lock);
+		mutex_lock(&phone_lock);
 		p = phone_device[minor];
 		if (p == NULL || (new_fops = fops_get(p->f_op)) == NULL)
 		{
@@ -78,7 +79,7 @@ static int phone_open(struct inode *inode, struct file *file)
 	}
 	fops_put(old_fops);
 end:
-	up(&phone_lock);
+	mutex_unlock(&phone_lock);
 	return err;
 }
 
@@ -100,18 +101,18 @@ int phone_register_device(struct phone_device *p, int unit)
 		end = unit + 1;  /* enter the loop at least one time */
 	}
 	
-	down(&phone_lock);
+	mutex_lock(&phone_lock);
 	for (i = base; i < end; i++) {
 		if (phone_device[i] == NULL) {
 			phone_device[i] = p;
 			p->minor = i;
 			devfs_mk_cdev(MKDEV(PHONE_MAJOR,i),
 				S_IFCHR|S_IRUSR|S_IWUSR, "phone/%d", i);
-			up(&phone_lock);
+			mutex_unlock(&phone_lock);
 			return 0;
 		}
 	}
-	up(&phone_lock);
+	mutex_unlock(&phone_lock);
 	return -ENFILE;
 }
 
@@ -121,12 +122,12 @@ int phone_register_device(struct phone_device *p, int unit)
 
 void phone_unregister_device(struct phone_device *pfd)
 {
-	down(&phone_lock);
+	mutex_lock(&phone_lock);
 	if (phone_device[pfd->minor] != pfd)
 		panic("phone: bad unregister");
 	devfs_remove("phone/%d", pfd->minor);
 	phone_device[pfd->minor] = NULL;
-	up(&phone_lock);
+	mutex_unlock(&phone_lock);
 }
 
 
-- 
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