fbdev: sm501fb: 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/sm501fb.c b/drivers/video/fbdev/sm501fb.c
index 1f3cbe7..e0d29be 100644 (file)
--- a/drivers/video/fbdev/sm501fb.c
+++ b/drivers/video/fbdev/sm501fb.c
@@ -2045,7 +2045,7 @@ err_alloc:
 /*
  *  Cleanup
  */
-static int sm501fb_remove(struct platform_device *pdev)
+static void sm501fb_remove(struct platform_device *pdev)
 {
        struct sm501fb_info *info = platform_get_drvdata(pdev);
        struct fb_info     *fbinfo_crt = info->fb[0];
@@ -2064,8 +2064,6 @@ static int sm501fb_remove(struct platform_device *pdev)
 
        framebuffer_release(fbinfo_pnl);
        framebuffer_release(fbinfo_crt);
-
-       return 0;
 }
 
 #ifdef CONFIG_PM
@@ -2209,7 +2207,7 @@ static int sm501fb_resume(struct platform_device *pdev)
 
 static struct platform_driver sm501fb_driver = {
        .probe          = sm501fb_probe,
-       .remove         = sm501fb_remove,
+       .remove_new     = sm501fb_remove,
        .suspend        = sm501fb_suspend,
        .resume         = sm501fb_resume,
        .driver         = {