| Message ID | 20230727070051.17778-19-frank.li@vivo.com |
|---|---|
| State | New |
| Headers | show |
| Series | None | expand |
On Thu, Jul 27, 2023 at 9:01 AM Yangtao Li <frank.li@vivo.com> wrote: > > 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. > > Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> > Signed-off-by: Yangtao Li <frank.li@vivo.com> Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
diff --git a/drivers/mmc/host/meson-gx-mmc.c b/drivers/mmc/host/meson-gx-mmc.c index d652374f37b2..a2601d0ece71 100644 --- a/drivers/mmc/host/meson-gx-mmc.c +++ b/drivers/mmc/host/meson-gx-mmc.c @@ -1294,7 +1294,7 @@ static int meson_mmc_probe(struct platform_device *pdev) return ret; } -static int meson_mmc_remove(struct platform_device *pdev) +static void meson_mmc_remove(struct platform_device *pdev) { struct meson_host *host = dev_get_drvdata(&pdev->dev); @@ -1305,8 +1305,6 @@ static int meson_mmc_remove(struct platform_device *pdev) free_irq(host->irq, host); clk_disable_unprepare(host->mmc_clk); - - return 0; } static const struct meson_mmc_data meson_gx_data = { @@ -1337,7 +1335,7 @@ MODULE_DEVICE_TABLE(of, meson_mmc_of_match); static struct platform_driver meson_mmc_driver = { .probe = meson_mmc_probe, - .remove = meson_mmc_remove, + .remove_new = meson_mmc_remove, .driver = { .name = DRIVER_NAME, .probe_type = PROBE_PREFER_ASYNCHRONOUS,
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. Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Yangtao Li <frank.li@vivo.com> --- drivers/mmc/host/meson-gx-mmc.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)