fbdev: pxafb: 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/pxafb.c b/drivers/video/fbdev/pxafb.c
index c46ed78..2a8b1de 100644 (file)
--- a/drivers/video/fbdev/pxafb.c
+++ b/drivers/video/fbdev/pxafb.c
@@ -2396,13 +2396,13 @@ failed:
        return ret;
 }
 
-static int pxafb_remove(struct platform_device *dev)
+static void pxafb_remove(struct platform_device *dev)
 {
        struct pxafb_info *fbi = platform_get_drvdata(dev);
        struct fb_info *info;
 
        if (!fbi)
-               return 0;
+               return;
 
        info = &fbi->fb;
 
@@ -2418,8 +2418,6 @@ static int pxafb_remove(struct platform_device *dev)
 
        dma_free_coherent(&dev->dev, fbi->dma_buff_size, fbi->dma_buff,
                          fbi->dma_buff_phys);
-
-       return 0;
 }
 
 static const struct of_device_id pxafb_of_dev_id[] = {
@@ -2432,7 +2430,7 @@ MODULE_DEVICE_TABLE(of, pxafb_of_dev_id);
 
 static struct platform_driver pxafb_driver = {
        .probe          = pxafb_probe,
-       .remove         = pxafb_remove,
+       .remove_new     = pxafb_remove,
        .driver         = {
                .name   = "pxa2xx-fb",
                .of_match_table = pxafb_of_dev_id,