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authorArnd Bergmann <arnd@arndb.de>2010-04-27 00:24:05 +0200
committerFrederic Weisbecker <fweisbec@gmail.com>2010-05-17 05:27:41 +0200
commit55929332c92e5d34d65a8f784604c92677ea3e15 (patch)
tree555e922d470336d07ace32bb564ac5358379a3c4 /drivers/hwmon/fschmd.c
parent703c631ebbcadcfd861d01e697fdda7c388fec9a (diff)
drivers: Push down BKL into various drivers
These are the last remaining device drivers using the ->ioctl file operation in the drivers directory (except from v4l drivers). [fweisbec: drop i8k pushdown as it has been done from procfs pushdown branch already] Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Diffstat (limited to 'drivers/hwmon/fschmd.c')
-rw-r--r--drivers/hwmon/fschmd.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/hwmon/fschmd.c b/drivers/hwmon/fschmd.c
index 0627f7a5b9b8..b7ca2a9676cf 100644
--- a/drivers/hwmon/fschmd.c
+++ b/drivers/hwmon/fschmd.c
@@ -38,6 +38,7 @@
#include <linux/i2c.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
+#include <linux/smp_lock.h>
#include <linux/err.h>
#include <linux/mutex.h>
#include <linux/sysfs.h>
@@ -847,8 +848,7 @@ static ssize_t watchdog_write(struct file *filp, const char __user *buf,
return count;
}
-static int watchdog_ioctl(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg)
+static long watchdog_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
static struct watchdog_info ident = {
.options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT |
@@ -858,6 +858,7 @@ static int watchdog_ioctl(struct inode *inode, struct file *filp,
int i, ret = 0;
struct fschmd_data *data = filp->private_data;
+ lock_kernel();
switch (cmd) {
case WDIOC_GETSUPPORT:
ident.firmware_version = data->revision;
@@ -914,7 +915,7 @@ static int watchdog_ioctl(struct inode *inode, struct file *filp,
default:
ret = -ENOTTY;
}
-
+ unlock_kernel();
return ret;
}
@@ -924,7 +925,7 @@ static const struct file_operations watchdog_fops = {
.open = watchdog_open,
.release = watchdog_release,
.write = watchdog_write,
- .ioctl = watchdog_ioctl,
+ .unlocked_ioctl = watchdog_ioctl,
};