media: s5p_mfc: 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: Hans Verkuil <hverkuil-cisco@xs4all.nl>

diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc.c b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc.c
index 9d2cce124a34c8bef397adf091b9aeacde1f6c6b..e30e54935d79a9f10bda2b11d192256c4d11e9f5 100644 (file)
--- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc.c
+++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc.c
@@ -1431,7 +1431,7 @@ err_dma:
 }
 
 /* Remove the driver */
-static int s5p_mfc_remove(struct platform_device *pdev)
+static void s5p_mfc_remove(struct platform_device *pdev)
 {
        struct s5p_mfc_dev *dev = platform_get_drvdata(pdev);
        struct s5p_mfc_ctx *ctx;
@@ -1463,7 +1463,6 @@ static int s5p_mfc_remove(struct platform_device *pdev)
        s5p_mfc_unconfigure_dma_memory(dev);
 
        s5p_mfc_final_pm(dev);
-       return 0;
 }
 
 #ifdef CONFIG_PM_SLEEP
@@ -1690,7 +1689,7 @@ MODULE_DEVICE_TABLE(of, exynos_mfc_match);
 
 static struct platform_driver s5p_mfc_driver = {
        .probe          = s5p_mfc_probe,
-       .remove         = s5p_mfc_remove,
+       .remove_new     = s5p_mfc_remove,
        .driver = {
                .name   = S5P_MFC_NAME,
                .pm     = &s5p_mfc_pm_ops,