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-rw-r--r--drivers/sbus/char/rtc.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/sbus/char/rtc.c b/drivers/sbus/char/rtc.c
index 9b988baf0b5..5774bdd0e26 100644
--- a/drivers/sbus/char/rtc.c
+++ b/drivers/sbus/char/rtc.c
@@ -210,6 +210,27 @@ static int rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
}
}
+static long rtc_compat_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ int rval = -ENOIOCTLCMD;
+
+ switch (cmd) {
+ /*
+ * These two are specific to this driver, the generic rtc ioctls
+ * are hanlded elsewhere.
+ */
+ case RTCGET:
+ case RTCSET:
+ lock_kernel();
+ rval = rtc_ioctl(file->f_dentry->d_inode, file, cmd, arg);
+ unlock_kernel();
+ break;
+ }
+
+ return rval;
+}
+
static int rtc_open(struct inode *inode, struct file *file)
{
int ret;
@@ -237,6 +258,7 @@ static struct file_operations rtc_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.ioctl = rtc_ioctl,
+ .compat_ioctl = rtc_compat_ioctl,
.open = rtc_open,
.release = rtc_release,
};