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drivers: Push down BKL into various drivers

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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>
This commit is contained in:
Arnd Bergmann
2010-04-27 00:24:05 +02:00
committed by Frederic Weisbecker
parent 703c631ebb
commit 55929332c9
23 changed files with 280 additions and 115 deletions
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16
drivers/rtc/rtc-m41t80.c
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@ -623,7 +623,7 @@ static ssize_t wdt_read(struct file *file, char __user *buf,
* according to their available features. We only actually usefully support
* querying capabilities and current status.
*/
static int wdt_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
static int wdt_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
{
int new_margin, rv;
@ -676,6 +676,18 @@ static int wdt_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
return -ENOTTY;
}
static long wdt_unlocked_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
{
int ret;
lock_kernel();
ret = wdt_ioctl(file, cmd, arg);
unlock_kernel();
return ret;
}
/**
* wdt_open:
* @inode: inode of device
@ -736,7 +748,7 @@ static int wdt_notify_sys(struct notifier_block *this, unsigned long code,
static const struct file_operations wdt_fops = {
.owner = THIS_MODULE,
.read = wdt_read,
.ioctl = wdt_ioctl,
.unlocked_ioctl = wdt_unlocked_ioctl,
.write = wdt_write,
.open = wdt_open,
.release = wdt_release,