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Diffstat (limited to 'arch/cris/arch-v32/drivers/pcf8563.c')
-rw-r--r--arch/cris/arch-v32/drivers/pcf8563.c21
1 files changed, 16 insertions, 5 deletions
diff --git a/arch/cris/arch-v32/drivers/pcf8563.c b/arch/cris/arch-v32/drivers/pcf8563.c
index f4478506e52c..bef6eb53b153 100644
--- a/arch/cris/arch-v32/drivers/pcf8563.c
+++ b/arch/cris/arch-v32/drivers/pcf8563.c
@@ -24,6 +24,7 @@
#include <linux/init.h>
#include <linux/fs.h>
#include <linux/ioctl.h>
+#include <linux/smp_lock.h>
#include <linux/delay.h>
#include <linux/bcd.h>
#include <linux/mutex.h>
@@ -49,7 +50,7 @@ static DEFINE_MUTEX(rtc_lock); /* Protect state etc */
static const unsigned char days_in_month[] =
{ 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
-int pcf8563_ioctl(struct inode *, struct file *, unsigned int, unsigned long);
+static long pcf8563_unlocked_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
/* Cache VL bit value read at driver init since writing the RTC_SECOND
* register clears the VL status.
@@ -57,8 +58,8 @@ int pcf8563_ioctl(struct inode *, struct file *, unsigned int, unsigned long);
static int voltage_low;
static const struct file_operations pcf8563_fops = {
- .owner = THIS_MODULE,
- .ioctl = pcf8563_ioctl
+ .owner = THIS_MODULE,
+ .unlocked_ioctl = pcf8563_unlocked_ioctl,
};
unsigned char
@@ -208,8 +209,7 @@ pcf8563_exit(void)
* ioctl calls for this driver. Why return -ENOTTY upon error? Because
* POSIX says so!
*/
-int pcf8563_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
+static int pcf8563_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
/* Some sanity checks. */
if (_IOC_TYPE(cmd) != RTC_MAGIC)
@@ -335,6 +335,17 @@ int pcf8563_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
return 0;
}
+static long pcf8563_unlocked_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+{
+ int ret;
+
+ lock_kernel();
+ return pcf8563_ioctl(filp, cmd, arg);
+ unlock_kernel();
+
+ return ret;
+}
+
static int __init pcf8563_register(void)
{
if (pcf8563_init() < 0) {

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