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spi: microchip-core-qspi: 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 (mostly) ignored
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.

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>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230303172041.2103336-37-u.kleine-koenig@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Uwe Kleine-König 2023-03-03 18:19:50 +01:00 committed by Mark Brown
parent a4f5ad1196
commit e4cf312d6d
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GPG Key ID: 24D68B725D5487D0
1 changed files with 2 additions and 4 deletions
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6
drivers/spi/spi-microchip-core-qspi.c
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@ -566,7 +566,7 @@ out:
return ret;
}
static int mchp_coreqspi_remove(struct platform_device *pdev)
static void mchp_coreqspi_remove(struct platform_device *pdev)
{
struct mchp_coreqspi *qspi = platform_get_drvdata(pdev);
u32 control = readl_relaxed(qspi->regs + REG_CONTROL);
@ -575,8 +575,6 @@ static int mchp_coreqspi_remove(struct platform_device *pdev)
control &= ~CONTROL_ENABLE;
writel_relaxed(control, qspi->regs + REG_CONTROL);
clk_disable_unprepare(qspi->clk);
return 0;
}
static const struct of_device_id mchp_coreqspi_of_match[] = {
@ -591,7 +589,7 @@ static struct platform_driver mchp_coreqspi_driver = {
.name = "microchip,coreqspi",
.of_match_table = mchp_coreqspi_of_match,
},
.remove = mchp_coreqspi_remove,
.remove_new = mchp_coreqspi_remove,
};
module_platform_driver(mchp_coreqspi_driver);