[PATCH] Add compat_ioctl to SG

Add compat_ioctl to SG driver
Signed-off-by: Andi Kleen <ak@muc.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

drivers/scsi/sg.c

@@ -1037,6 +1037,29 @@ sg_ioctl(struct inode *inode, struct file *filp,
 	}
 }
 
+#ifdef CONFIG_COMPAT
+static long sg_compat_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg)
+{
+	Sg_device *sdp;
+	Sg_fd *sfp;
+	struct scsi_device *sdev;
+
+	if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp)))
+		return -ENXIO;
+
+	sdev = sdp->device;
+	if (sdev->host->hostt->compat_ioctl) { 
+		int ret;
+
+		ret = sdev->host->hostt->compat_ioctl(sdev, cmd_in, (void __user *)arg);
+
+		return ret;
+	}
+	
+	return -ENOIOCTLCMD;
+}
+#endif
+
 static unsigned int
 sg_poll(struct file *filp, poll_table * wait)
 {
@@ -1346,6 +1369,9 @@ static struct file_operations sg_fops = {
 	.write = sg_write,
 	.poll = sg_poll,
 	.ioctl = sg_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl = sg_compat_ioctl,
+#endif
 	.open = sg_open,
 	.mmap = sg_mmap,
 	.release = sg_release,