spi: bitbang: Make spi_bitbang_stop() return void

spi_bitbang_stop() never fails, so make it return void.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/drivers/spi/spi-omap-uwire.c b/drivers/spi/spi-omap-uwire.c
index 9313fd3..a4d7bb5 100644
--- a/drivers/spi/spi-omap-uwire.c
+++ b/drivers/spi/spi-omap-uwire.c
@@ -539,14 +539,13 @@
 static int uwire_remove(struct platform_device *pdev)
 {
 	struct uwire_spi	*uwire = platform_get_drvdata(pdev);
-	int			status;
 
 	// FIXME remove all child devices, somewhere ...
 
-	status = spi_bitbang_stop(&uwire->bitbang);
+	spi_bitbang_stop(&uwire->bitbang);
 	uwire_off(uwire);
 	iounmap(uwire_base);
-	return status;
+	return 0;
 }
 
 /* work with hotplug and coldplug */