diff mbox series

[26/59] dma: mmp_tdma: Convert to platform remove callback returning void

Message ID 20230919133207.1400430-27-u.kleine-koenig@pengutronix.de (mailing list archive)
State Accepted
Commit f543b251500a0de589bc4c97da45b88410bf7c56
Headers show
Series dma: Convert to platform remove callback returning void | expand

Commit Message

Uwe Kleine-König Sept. 19, 2023, 1:31 p.m. UTC 
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 ignored (apart
from emitting a warning) 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. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().

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>
---
 drivers/dma/mmp_tdma.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/dma/mmp_tdma.c b/drivers/dma/mmp_tdma.c
index d49fa6bc6775..f039e07181f7 100644
--- a/drivers/dma/mmp_tdma.c
+++ b/drivers/dma/mmp_tdma.c
@@ -552,12 +552,10 @@  static void mmp_tdma_issue_pending(struct dma_chan *chan)
 	mmp_tdma_enable_chan(tdmac);
 }
 
-static int mmp_tdma_remove(struct platform_device *pdev)
+static void mmp_tdma_remove(struct platform_device *pdev)
 {
 	if (pdev->dev.of_node)
 		of_dma_controller_free(pdev->dev.of_node);
-
-	return 0;
 }
 
 static int mmp_tdma_chan_init(struct mmp_tdma_device *tdev,
@@ -753,7 +751,7 @@  static struct platform_driver mmp_tdma_driver = {
 	},
 	.id_table	= mmp_tdma_id_table,
 	.probe		= mmp_tdma_probe,
-	.remove		= mmp_tdma_remove,
+	.remove_new	= mmp_tdma_remove,
 };
 
 module_platform_driver(mmp_tdma_driver);