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>
diff --git a/drivers/char/apm-emulation.c b/drivers/char/apm-emulation.c
index 4f568cb..033e150 100644
--- a/drivers/char/apm-emulation.c
+++ b/drivers/char/apm-emulation.c
@@ -265,8 +265,8 @@
* Only when everyone who has opened /dev/apm_bios with write permission
* has acknowledge does the actual suspend happen.
*/
-static int
-apm_ioctl(struct inode * inode, struct file *filp, u_int cmd, u_long arg)
+static long
+apm_ioctl(struct file *filp, u_int cmd, u_long arg)
{
struct apm_user *as = filp->private_data;
int err = -EINVAL;
@@ -274,6 +274,7 @@
if (!as->suser || !as->writer)
return -EPERM;
+ lock_kernel();
switch (cmd) {
case APM_IOC_SUSPEND:
mutex_lock(&state_lock);
@@ -334,6 +335,7 @@
mutex_unlock(&state_lock);
break;
}
+ unlock_kernel();
return err;
}
@@ -397,7 +399,7 @@
.owner = THIS_MODULE,
.read = apm_read,
.poll = apm_poll,
- .ioctl = apm_ioctl,
+ .unlocked_ioctl = apm_ioctl,
.open = apm_open,
.release = apm_release,
};