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>

1 files changed, 14 insertions, 3 deletions

diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c
index 42764849eb78..3d4fc0f7b00b 100644
--- a/drivers/macintosh/via-pmu.c
+++ b/drivers/macintosh/via-pmu.c
@@ -2273,8 +2273,7 @@ static int register_pmu_pm_ops(void)
 device_initcall(register_pmu_pm_ops);
 #endif
 
-static int
-pmu_ioctl(struct inode * inode, struct file *filp,
+static int pmu_ioctl(struct file *filp,
                      u_int cmd, u_long arg)
 {
         __u32 __user *argp = (__u32 __user *)arg;
@@ -2337,11 +2336,23 @@ pmu_ioctl(struct inode * inode, struct file *filp,
         return error;
 }
 
+static long pmu_unlocked_ioctl(struct file *filp,
+                               u_int cmd, u_long arg)
+{
+        int ret;
+
+        lock_kernel();
+        ret = pmu_ioctl(filp, cmd, arg);
+        unlock_kernel();
+
+        return ret;
+}
+
 static const struct file_operations pmu_device_fops = {
         .read           = pmu_read,
         .write          = pmu_write,
         .poll           = pmu_fpoll,
-        .ioctl          = pmu_ioctl,
+        .unlocked_ioctl = pmu_unlocked_ioctl,
         .open           = pmu_open,
         .release        = pmu_release,
 };