diff mbox series

[34/59] dma: qcom: bam_dma: Convert to platform remove callback returning void

Message ID 20230919133207.1400430-35-u.kleine-koenig@pengutronix.de
State Accepted
Commit 8d0f1ca5e4037f671cee43a4a582c0f8c6e8e31d
Headers show
Series None | 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/qcom/bam_dma.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/dma/qcom/bam_dma.c b/drivers/dma/qcom/bam_dma.c
index 4c3eb972039d..c4f8d17d0c68 100644
--- a/drivers/dma/qcom/bam_dma.c
+++ b/drivers/dma/qcom/bam_dma.c
@@ -1386,7 +1386,7 @@  static int bam_dma_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int bam_dma_remove(struct platform_device *pdev)
+static void bam_dma_remove(struct platform_device *pdev)
 {
 	struct bam_device *bdev = platform_get_drvdata(pdev);
 	u32 i;
@@ -1416,8 +1416,6 @@  static int bam_dma_remove(struct platform_device *pdev)
 	tasklet_kill(&bdev->task);
 
 	clk_disable_unprepare(bdev->bamclk);
-
-	return 0;
 }
 
 static int __maybe_unused bam_dma_runtime_suspend(struct device *dev)
@@ -1475,7 +1473,7 @@  static const struct dev_pm_ops bam_dma_pm_ops = {
 
 static struct platform_driver bam_dma_driver = {
 	.probe = bam_dma_probe,
-	.remove = bam_dma_remove,
+	.remove_new = bam_dma_remove,
 	.driver = {
 		.name = "bam-dma-engine",
 		.pm = &bam_dma_pm_ops,