spi: spidev: Add 32 bit compat ioctl()

Commit Message

[e-mail] Feb. 2, 2011, 10:56 a.m. UTC

None

Patch

diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c
index 4e6245e..95c3f10 100644
--- a/drivers/spi/spidev.c
+++ b/drivers/spi/spidev.c
@@ -471,6 +471,14 @@  spidev_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 	return retval;
 }
 
+#ifdef CONFIG_COMPAT
+static long
+spidev_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+{
+	return spidev_ioctl(filp, cmd, (unsigned long)compat_ptr(arg));
+}
+#endif /* CONFIG_COMPAT */
+
 static int spidev_open(struct inode *inode, struct file *filp)
 {
 	struct spidev_data	*spidev;
@@ -543,6 +551,9 @@  static const struct file_operations spidev_fops = {
 	.write =	spidev_write,
 	.read =		spidev_read,
 	.unlocked_ioctl = spidev_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl = spidev_compat_ioctl,
+#endif
 	.open =		spidev_open,
 	.release =	spidev_release,
 	.llseek =	no_llseek,