From 48b81880519274d2a8b3e9919a47d91d05a1c964 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Tue, 20 May 2008 19:15:59 +0200
Subject: hpet: BKL pushdown

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/char/hpet.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'drivers/char/hpet.c')

diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index e7fb0bca3667..fb0a85a1eb36 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -14,6 +14,7 @@
 #include <linux/interrupt.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
+#include <linux/smp_lock.h>
 #include <linux/types.h>
 #include <linux/miscdevice.h>
 #include <linux/major.h>
@@ -193,6 +194,7 @@ static int hpet_open(struct inode *inode, struct file *file)
 	if (file->f_mode & FMODE_WRITE)
 		return -EINVAL;
 
+	lock_kernel();
 	spin_lock_irq(&hpet_lock);
 
 	for (devp = NULL, hpetp = hpets; hpetp && !devp; hpetp = hpetp->hp_next)
@@ -207,6 +209,7 @@ static int hpet_open(struct inode *inode, struct file *file)
 
 	if (!devp) {
 		spin_unlock_irq(&hpet_lock);
+		unlock_kernel();
 		return -EBUSY;
 	}
 
@@ -214,6 +217,7 @@ static int hpet_open(struct inode *inode, struct file *file)
 	devp->hd_irqdata = 0;
 	devp->hd_flags |= HPET_OPEN;
 	spin_unlock_irq(&hpet_lock);
+	unlock_kernel();
 
 	return 0;
 }
-- 
cgit v1.2.3


From 372572e9b1dcc5e36091199be63766d13e5a8ae0 Mon Sep 17 00:00:00 2001
From: Adrian Bunk <bunk@kernel.org>
Date: Fri, 25 Jul 2008 01:48:11 -0700
Subject: #if 0 hpet_unregister()

This patch #if 0's the unused hpet_unregister().

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/char/hpet.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'drivers/char/hpet.c')

diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index fb0a85a1eb36..b3f5dbc6d880 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -623,6 +623,7 @@ static inline int hpet_tpcheck(struct hpet_task *tp)
 	return -ENXIO;
 }
 
+#if 0
 int hpet_unregister(struct hpet_task *tp)
 {
 	struct hpet_dev *devp;
@@ -652,6 +653,7 @@ int hpet_unregister(struct hpet_task *tp)
 
 	return 0;
 }
+#endif  /*  0  */
 
 static ctl_table hpet_table[] = {
 	{
-- 
cgit v1.2.3