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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2023-09-19 15:31:12 +0200
committerVinod Koul <vkoul@kernel.org>2023-09-28 13:10:45 +0530
commitb13af3c41bad5f4e45a73d6978f31ad48ffc2dee (patch)
treeeff2cb55c4d992877f333d7800eb069a6ef03a5d /drivers/dma/at_xdmac.c
parentae3f38e495b42494414cbace3b3bd3cb6dc10506 (diff)
dmaengine: at_xdmac: 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 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> Link: https://lore.kernel.org/r/20230919133207.1400430-5-u.kleine-koenig@pengutronix.de Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/at_xdmac.c')
-rw-r--r--drivers/dma/at_xdmac.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/dma/at_xdmac.c b/drivers/dma/at_xdmac.c
index c3b37168b21f..299396121e6d 100644
--- a/drivers/dma/at_xdmac.c
+++ b/drivers/dma/at_xdmac.c
@@ -2431,7 +2431,7 @@ err_free_irq:
return ret;
}
-static int at_xdmac_remove(struct platform_device *pdev)
+static void at_xdmac_remove(struct platform_device *pdev)
{
struct at_xdmac *atxdmac = (struct at_xdmac *)platform_get_drvdata(pdev);
int i;
@@ -2452,8 +2452,6 @@ static int at_xdmac_remove(struct platform_device *pdev)
tasklet_kill(&atchan->tasklet);
at_xdmac_free_chan_resources(&atchan->chan);
}
-
- return 0;
}
static const struct dev_pm_ops __maybe_unused atmel_xdmac_dev_pm_ops = {
@@ -2478,7 +2476,7 @@ MODULE_DEVICE_TABLE(of, atmel_xdmac_dt_ids);
static struct platform_driver at_xdmac_driver = {
.probe = at_xdmac_probe,
- .remove = at_xdmac_remove,
+ .remove_new = at_xdmac_remove,
.driver = {
.name = "at_xdmac",
.of_match_table = of_match_ptr(atmel_xdmac_dt_ids),