fbdev: grvga: Convert to platform remove callback returning void

The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/video/fbdev/grvga.c b/drivers/video/fbdev/grvga.c
index 24818b2762413abb18505d8521c2fa55d6018075..9aa15be29ea9d5920ba4d3f0d6e385eae2146f99 100644 (file)
--- a/drivers/video/fbdev/grvga.c
+++ b/drivers/video/fbdev/grvga.c
@@ -504,7 +504,7 @@ free_fb:
        return retval;
 }
 
-static int grvga_remove(struct platform_device *device)
+static void grvga_remove(struct platform_device *device)
 {
        struct fb_info *info = dev_get_drvdata(&device->dev);
        struct grvga_par *par;
@@ -524,8 +524,6 @@ static int grvga_remove(struct platform_device *device)
 
                framebuffer_release(info);
        }
-
-       return 0;
 }
 
 static struct of_device_id svgactrl_of_match[] = {
@@ -545,7 +543,7 @@ static struct platform_driver grvga_driver = {
                .of_match_table = svgactrl_of_match,
        },
        .probe          = grvga_probe,
-       .remove         = grvga_remove,
+       .remove_new     = grvga_remove,
 };
 
 module_platform_driver(grvga_driver);