[SPARC] cpwatchdog: implement ->compat_ioctl

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 24 insertions, 0 deletions

diff --git a/drivers/sbus/char/cpwatchdog.c b/drivers/sbus/char/cpwatchdog.c
index c82abeb59d3a..071ae24be892 100644
--- a/drivers/sbus/char/cpwatchdog.c
+++ b/drivers/sbus/char/cpwatchdog.c
@@ -26,6 +26,7 @@
 #include <linux/interrupt.h>
 #include <linux/ioport.h>
 #include <linux/timer.h>
+#include <linux/smp_lock.h>
 #include <asm/irq.h>
 #include <asm/ebus.h>
 #include <asm/oplib.h>
@@ -394,6 +395,28 @@ static int wd_ioctl(struct inode *inode, struct file *file,
         return(0);
 }
 
+static long wd_compat_ioctl(struct file *file, unsigned int cmd,
+                unsigned long arg)
+{
+        int rval = -ENOIOCTLCMD;
+
+        switch (cmd) {
+        /* solaris ioctls are specific to this driver */
+        case WIOCSTART:
+        case WIOCSTOP:
+        case WIOCGSTAT:
+                lock_kernel();
+                rval = wd_ioctl(file->f_dentry->d_inode, file, cmd, arg);
+                lock_kernel();
+                break;
+        /* everything else is handled by the generic compat layer */
+        default:
+                break;
+        }
+
+        return rval;
+}
+
 static ssize_t wd_write(struct file     *file, 
                         const char      __user *buf, 
                         size_t          count, 
@@ -441,6 +464,7 @@ static irqreturn_t wd_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 static struct file_operations wd_fops = {
         .owner =        THIS_MODULE,
         .ioctl =        wd_ioctl,
+        .compat_ioctl = wd_compat_ioctl,
         .open =         wd_open,
         .write =        wd_write,
         .read =         wd_read,