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, 2 deletions

diff --git a/drivers/char/genrtc.c b/drivers/char/genrtc.c
index 31e7c91c2d9d..b6c2cc167c11 100644
--- a/drivers/char/genrtc.c
+++ b/drivers/char/genrtc.c
@@ -262,7 +262,7 @@ static inline int gen_set_rtc_irq_bit(unsigned char bit)
 #endif
 }
 
-static int gen_rtc_ioctl(struct inode *inode, struct file *file,
+static int gen_rtc_ioctl(struct file *file,
                          unsigned int cmd, unsigned long arg)
 {
         struct rtc_time wtime;
@@ -332,6 +332,18 @@ static int gen_rtc_ioctl(struct inode *inode, struct file *file,
         return -EINVAL;
 }
 
+static long gen_rtc_unlocked_ioctl(struct file *file, unsigned int cmd,
+                                   unsigned long arg)
+{
+        int ret;
+
+        lock_kernel();
+        ret = gen_rtc_ioctl(file, cmd, arg);
+        unlock_kernel();
+
+        return ret;
+}
+
 /*
  *      We enforce only one user at a time here with the open/close.
  *      Also clear the previous interrupt data on an open, and clean
@@ -482,7 +494,7 @@ static const struct file_operations gen_rtc_fops = {
         .read           = gen_rtc_read,
         .poll           = gen_rtc_poll,
 #endif
-        .ioctl          = gen_rtc_ioctl,
+        .unlocked_ioctl = gen_rtc_unlocked_ioctl,
         .open           = gen_rtc_open,
         .release        = gen_rtc_release,
 };