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path: root/drivers/message/i2o/i2o_config.c
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Diffstat (limited to 'drivers/message/i2o/i2o_config.c')
-rw-r--r--drivers/message/i2o/i2o_config.c23
1 files changed, 12 insertions, 11 deletions
diff --git a/drivers/message/i2o/i2o_config.c b/drivers/message/i2o/i2o_config.c
index 068ba0785bb4..7d3cc575c361 100644
--- a/drivers/message/i2o/i2o_config.c
+++ b/drivers/message/i2o/i2o_config.c
@@ -31,7 +31,7 @@
*/
#include <linux/miscdevice.h>
-#include <linux/smp_lock.h>
+#include <linux/mutex.h>
#include <linux/compat.h>
#include <linux/slab.h>
@@ -41,6 +41,7 @@
#define SG_TABLESIZE 30
+static DEFINE_MUTEX(i2o_cfg_mutex);
static long i2o_cfg_ioctl(struct file *, unsigned int, unsigned long);
static spinlock_t i2o_config_lock;
@@ -741,7 +742,7 @@ static long i2o_cfg_compat_ioctl(struct file *file, unsigned cmd,
unsigned long arg)
{
int ret;
- lock_kernel();
+ mutex_lock(&i2o_cfg_mutex);
switch (cmd) {
case I2OGETIOPS:
ret = i2o_cfg_ioctl(file, cmd, arg);
@@ -753,7 +754,7 @@ static long i2o_cfg_compat_ioctl(struct file *file, unsigned cmd,
ret = -ENOIOCTLCMD;
break;
}
- unlock_kernel();
+ mutex_unlock(&i2o_cfg_mutex);
return ret;
}
@@ -981,7 +982,7 @@ static long i2o_cfg_ioctl(struct file *fp, unsigned int cmd, unsigned long arg)
{
int ret;
- lock_kernel();
+ mutex_lock(&i2o_cfg_mutex);
switch (cmd) {
case I2OGETIOPS:
ret = i2o_cfg_getiops(arg);
@@ -1037,7 +1038,7 @@ static long i2o_cfg_ioctl(struct file *fp, unsigned int cmd, unsigned long arg)
osm_debug("unknown ioctl called!\n");
ret = -EINVAL;
}
- unlock_kernel();
+ mutex_unlock(&i2o_cfg_mutex);
return ret;
}
@@ -1051,7 +1052,7 @@ static int cfg_open(struct inode *inode, struct file *file)
if (!tmp)
return -ENOMEM;
- lock_kernel();
+ mutex_lock(&i2o_cfg_mutex);
file->private_data = (void *)(i2o_cfg_info_id++);
tmp->fp = file;
tmp->fasync = NULL;
@@ -1065,7 +1066,7 @@ static int cfg_open(struct inode *inode, struct file *file)
spin_lock_irqsave(&i2o_config_lock, flags);
open_files = tmp;
spin_unlock_irqrestore(&i2o_config_lock, flags);
- unlock_kernel();
+ mutex_unlock(&i2o_cfg_mutex);
return 0;
}
@@ -1076,14 +1077,14 @@ static int cfg_fasync(int fd, struct file *fp, int on)
struct i2o_cfg_info *p;
int ret = -EBADF;
- lock_kernel();
+ mutex_lock(&i2o_cfg_mutex);
for (p = open_files; p; p = p->next)
if (p->q_id == id)
break;
if (p)
ret = fasync_helper(fd, fp, on, &p->fasync);
- unlock_kernel();
+ mutex_unlock(&i2o_cfg_mutex);
return ret;
}
@@ -1093,7 +1094,7 @@ static int cfg_release(struct inode *inode, struct file *file)
struct i2o_cfg_info *p, **q;
unsigned long flags;
- lock_kernel();
+ mutex_lock(&i2o_cfg_mutex);
spin_lock_irqsave(&i2o_config_lock, flags);
for (q = &open_files; (p = *q) != NULL; q = &p->next) {
if (p->q_id == id) {
@@ -1103,7 +1104,7 @@ static int cfg_release(struct inode *inode, struct file *file)
}
}
spin_unlock_irqrestore(&i2o_config_lock, flags);
- unlock_kernel();
+ mutex_unlock(&i2o_cfg_mutex);
return 0;
}