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[5/5] media: ti: j721e-csi2rx: Convert to platform remove callback returning void

Message ID bcd484d86eadb4d65ddeac35fe4db29dbec65dea.1708692946.git.u.kleine-koenig@pengutronix.de
State Accepted
Commit 8796f3357f767da75b46fe9cc957546f458f4502
Headers show
Series media: Convert to platform remove callback returning void | expand

Commit Message

Uwe Kleine-König Feb. 23, 2024, 12:59 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() will be 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/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c b/drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c
index 54aba055c96b..6da83d0cffaa 100644
--- a/drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c
+++ b/drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c
@@ -1142,7 +1142,7 @@  static int ti_csi2rx_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int ti_csi2rx_remove(struct platform_device *pdev)
+static void ti_csi2rx_remove(struct platform_device *pdev)
 {
 	struct ti_csi2rx_dev *csi = platform_get_drvdata(pdev);
 
@@ -1154,8 +1154,6 @@  static int ti_csi2rx_remove(struct platform_device *pdev)
 	ti_csi2rx_cleanup_dma(csi);
 
 	mutex_destroy(&csi->mutex);
-
-	return 0;
 }
 
 static const struct of_device_id ti_csi2rx_of_match[] = {
@@ -1166,7 +1164,7 @@  MODULE_DEVICE_TABLE(of, ti_csi2rx_of_match);
 
 static struct platform_driver ti_csi2rx_pdrv = {
 	.probe = ti_csi2rx_probe,
-	.remove = ti_csi2rx_remove,
+	.remove_new = ti_csi2rx_remove,
 	.driver = {
 		.name = TI_CSI2RX_MODULE_NAME,
 		.of_match_table = ti_csi2rx_of_match,