diff mbox series

[09/18] remoteproc: qcom_q6v5_adsp: Convert to platform remove callback returning void

Message ID 20230504194453.1150368-10-u.kleine-koenig@pengutronix.de
State Accepted
Commit 52c800940612dc7ece9257922b87905c949fa492
Headers show
Series remoteproc: Convert to platform remove callback returning void | expand

Commit Message

Uwe Kleine-König May 4, 2023, 7:44 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 (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>
---
 drivers/remoteproc/qcom_q6v5_adsp.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

Comments

Caleb Connolly May 5, 2023, 3 a.m. UTC | #1
On 04/05/2023 20:44, Uwe Kleine-König 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.
> 
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Reviewed-by: Caleb Connolly <caleb.connolly@linaro.org>
> ---
>  drivers/remoteproc/qcom_q6v5_adsp.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/remoteproc/qcom_q6v5_adsp.c b/drivers/remoteproc/qcom_q6v5_adsp.c
> index d546ab9dc141..6777a3bd6226 100644
> --- a/drivers/remoteproc/qcom_q6v5_adsp.c
> +++ b/drivers/remoteproc/qcom_q6v5_adsp.c
> @@ -763,7 +763,7 @@ static int adsp_probe(struct platform_device *pdev)
>  	return ret;
>  }
>  
> -static int adsp_remove(struct platform_device *pdev)
> +static void adsp_remove(struct platform_device *pdev)
>  {
>  	struct qcom_adsp *adsp = platform_get_drvdata(pdev);
>  
> @@ -775,8 +775,6 @@ static int adsp_remove(struct platform_device *pdev)
>  	qcom_remove_ssr_subdev(adsp->rproc, &adsp->ssr_subdev);
>  	qcom_rproc_pds_detach(adsp, adsp->proxy_pds, adsp->proxy_pd_count);
>  	rproc_free(adsp->rproc);
> -
> -	return 0;
>  }
>  
>  static const struct adsp_pil_data adsp_resource_init = {
> @@ -859,7 +857,7 @@ MODULE_DEVICE_TABLE(of, adsp_of_match);
>  
>  static struct platform_driver adsp_pil_driver = {
>  	.probe = adsp_probe,
> -	.remove = adsp_remove,
> +	.remove_new = adsp_remove,
>  	.driver = {
>  		.name = "qcom_q6v5_adsp",
>  		.of_match_table = adsp_of_match,
diff mbox series

Patch

diff --git a/drivers/remoteproc/qcom_q6v5_adsp.c b/drivers/remoteproc/qcom_q6v5_adsp.c
index d546ab9dc141..6777a3bd6226 100644
--- a/drivers/remoteproc/qcom_q6v5_adsp.c
+++ b/drivers/remoteproc/qcom_q6v5_adsp.c
@@ -763,7 +763,7 @@  static int adsp_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int adsp_remove(struct platform_device *pdev)
+static void adsp_remove(struct platform_device *pdev)
 {
 	struct qcom_adsp *adsp = platform_get_drvdata(pdev);
 
@@ -775,8 +775,6 @@  static int adsp_remove(struct platform_device *pdev)
 	qcom_remove_ssr_subdev(adsp->rproc, &adsp->ssr_subdev);
 	qcom_rproc_pds_detach(adsp, adsp->proxy_pds, adsp->proxy_pd_count);
 	rproc_free(adsp->rproc);
-
-	return 0;
 }
 
 static const struct adsp_pil_data adsp_resource_init = {
@@ -859,7 +857,7 @@  MODULE_DEVICE_TABLE(of, adsp_of_match);
 
 static struct platform_driver adsp_pil_driver = {
 	.probe = adsp_probe,
-	.remove = adsp_remove,
+	.remove_new = adsp_remove,
 	.driver = {
 		.name = "qcom_q6v5_adsp",
 		.of_match_table = adsp_of_match,