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fpga: stratix10-soc: Convert to platform remove callback returning void

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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>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/ab8328e82109b6ef14b2ad59889aee5f99264435.1703006638.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Xu Yilun <yilun.xu@linux.intel.com>
This commit is contained in:
Uwe Kleine-König 2023-12-19 18:32:09 +01:00 committed by Xu Yilun
parent 4bfc170a31
commit 24bf6f4be4
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1 changed files with 2 additions and 4 deletions
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6
drivers/fpga/stratix10-soc.c
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@ -436,15 +436,13 @@ probe_err:
return ret; return ret;
} }
static int s10_remove(struct platform_device *pdev) static void s10_remove(struct platform_device *pdev)
{ {
struct fpga_manager *mgr = platform_get_drvdata(pdev); struct fpga_manager *mgr = platform_get_drvdata(pdev);
struct s10_priv *priv = mgr->priv; struct s10_priv *priv = mgr->priv;
fpga_mgr_unregister(mgr); fpga_mgr_unregister(mgr);
stratix10_svc_free_channel(priv->chan); stratix10_svc_free_channel(priv->chan);
return 0;
} }
static const struct of_device_id s10_of_match[] = { static const struct of_device_id s10_of_match[] = {
@ -457,7 +455,7 @@ MODULE_DEVICE_TABLE(of, s10_of_match);
static struct platform_driver s10_driver = { static struct platform_driver s10_driver = {
.probe = s10_probe, .probe = s10_probe,
.remove = s10_remove, .remove_new = s10_remove,
.driver = { .driver = {
.name = "Stratix10 SoC FPGA manager", .name = "Stratix10 SoC FPGA manager",
.of_match_table = of_match_ptr(s10_of_match), .of_match_table = of_match_ptr(s10_of_match),