[PATCH v2] gpu: host1x: use dev_err_probe() in probe path

Akhilesh Patil posted 1 patch 1 month, 1 week ago
drivers/gpu/host1x/dev.c | 10 ++--------
1 file changed, 2 insertions(+), 8 deletions(-)
[PATCH v2] gpu: host1x: use dev_err_probe() in probe path
Posted by Akhilesh Patil 1 month, 1 week ago
Use dev_err_probe() helper as recommended by core driver model in
drivers/base/core.c to handle deferred probe error. Improve code
consistency and debuggability using standard helper.

Signed-off-by: Akhilesh Patil <akhilesh@ee.iitb.ac.in>
---
V1 -> V2: addressed review comments as below.
* inline - err = PTR_ERR(host->clk) inside dev_err_probe()
* avoid printing err, as dev_err_probe() prints it internally.
* rebase and compile test with v6.17-rc2

 drivers/gpu/host1x/dev.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c
index 1f93e5e276c0..c586c242f2c2 100644
--- a/drivers/gpu/host1x/dev.c
+++ b/drivers/gpu/host1x/dev.c
@@ -585,14 +585,8 @@ static int host1x_probe(struct platform_device *pdev)
 	}
 
 	host->clk = devm_clk_get(&pdev->dev, NULL);
-	if (IS_ERR(host->clk)) {
-		err = PTR_ERR(host->clk);
-
-		if (err != -EPROBE_DEFER)
-			dev_err(&pdev->dev, "failed to get clock: %d\n", err);
-
-		return err;
-	}
+	if (IS_ERR(host->clk))
+		return dev_err_probe(&pdev->dev, PTR_ERR(host->clk), "failed to get clock\n");
 
 	err = host1x_get_resets(host);
 	if (err)
-- 
2.34.1
Re: [PATCH v2] gpu: host1x: use dev_err_probe() in probe path
Posted by Mikko Perttunen 1 month, 1 week ago
On Friday, August 22, 2025 3:14 PM Akhilesh Patil wrote:
> Use dev_err_probe() helper as recommended by core driver model in
> drivers/base/core.c to handle deferred probe error. Improve code
> consistency and debuggability using standard helper.
> 
> Signed-off-by: Akhilesh Patil <akhilesh@ee.iitb.ac.in>
> ---
> V1 -> V2: addressed review comments as below.
> * inline - err = PTR_ERR(host->clk) inside dev_err_probe()
> * avoid printing err, as dev_err_probe() prints it internally.
> * rebase and compile test with v6.17-rc2
> 
>  drivers/gpu/host1x/dev.c | 10 ++--------
>  1 file changed, 2 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c
> index 1f93e5e276c0..c586c242f2c2 100644
> --- a/drivers/gpu/host1x/dev.c
> +++ b/drivers/gpu/host1x/dev.c
> @@ -585,14 +585,8 @@ static int host1x_probe(struct platform_device *pdev)
>  	}
> 
>  	host->clk = devm_clk_get(&pdev->dev, NULL);
> -	if (IS_ERR(host->clk)) {
> -		err = PTR_ERR(host->clk);
> -
> -		if (err != -EPROBE_DEFER)
> -			dev_err(&pdev->dev, "failed to get clock: %d\n", 
err);
> -
> -		return err;
> -	}
> +	if (IS_ERR(host->clk))
> +		return dev_err_probe(&pdev->dev, PTR_ERR(host->clk), "failed 
to get
> clock\n");
> 
>  	err = host1x_get_resets(host);
>  	if (err)

Thanks!

Tested-by: Mikko Perttunen <mperttunen@nvidia.com>
Acked-by: Mikko Perttunen <mperttunen@nvidia.com>