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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/rtc/rtc-m41t80.c
parent703c631ebbcadcfd861d01e697fdda7c388fec9a (diff)
downloadlinux-55929332c92e5d34d65a8f784604c92677ea3e15.tar.gz
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/rtc/rtc-m41t80.c')
-rw-r--r--drivers/rtc/rtc-m41t80.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/rtc/rtc-m41t80.c b/drivers/rtc/rtc-m41t80.c
index 60fe266f0f49..038095d99976 100644
--- a/drivers/rtc/rtc-m41t80.c
+++ b/drivers/rtc/rtc-m41t80.c
@@ -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,