[PATCH] SPI: improve sysfs compiler complaint handling

[Jeff Garzik <jeff@garzik.org>]

Signed-off-by: Jeff Garzik <jeff@garzik.org>

---

Pointless?  I leave it up to the maintainer(s) to decide.

The compiler complains, even with the "(void)".

 drivers/spi/spi.c            |    4 +++-

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 146298a..085d4fa 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -448,7 +448,9 @@ static int __unregister(struct device *d
  */
 void spi_unregister_master(struct spi_master *master)
 {
-	(void) device_for_each_child(master->cdev.dev, NULL, __unregister);
+	int dummy;
+	
+	dummy = device_for_each_child(master->cdev.dev, NULL, __unregister);
 	class_device_unregister(&master->cdev);
 }
 EXPORT_SYMBOL_GPL(spi_unregister_master);