Print and propagate the return value of platform_get_irq on failure.
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/devfreq/tegra-devfreq.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/devfreq/tegra-devfreq.c b/drivers/devfreq/tegra-devfreq.c
index 214fff9..ae71215 100644
--- a/drivers/devfreq/tegra-devfreq.c
+++ b/drivers/devfreq/tegra-devfreq.c
@@ -688,9 +688,9 @@ static int tegra_devfreq_probe(struct platform_device *pdev)
}
irq = platform_get_irq(pdev, 0);
- if (irq <= 0) {
- dev_err(&pdev->dev, "Failed to get IRQ\n");
- return -ENODEV;
+ if (irq < 0) {
+ dev_err(&pdev->dev, "Failed to get IRQ: %d\n", irq);
+ return irq;
}
platform_set_drvdata(pdev, tegra);
--
2.5.0
Hi,
On 2017년 06월 30일 16:22, Gustavo A. R. Silva wrote:
> Print and propagate the return value of platform_get_irq on failure.
>
> Signed-off-by: Gustavo A. R. Silva <[email protected]>
> ---
> drivers/devfreq/tegra-devfreq.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/devfreq/tegra-devfreq.c b/drivers/devfreq/tegra-devfreq.c
> index 214fff9..ae71215 100644
> --- a/drivers/devfreq/tegra-devfreq.c
> +++ b/drivers/devfreq/tegra-devfreq.c
> @@ -688,9 +688,9 @@ static int tegra_devfreq_probe(struct platform_device *pdev)
> }
>
> irq = platform_get_irq(pdev, 0);
> - if (irq <= 0) {
> - dev_err(&pdev->dev, "Failed to get IRQ\n");
> - return -ENODEV;
> + if (irq < 0) {
> + dev_err(&pdev->dev, "Failed to get IRQ: %d\n", irq);
> + return irq;
> }
>
> platform_set_drvdata(pdev, tegra);
>
Reviewed-by: Chanwoo Choi <[email protected]>
--
Best Regards,
Chanwoo Choi
Samsung Electronics
On Fri, Jun 30, 2017 at 5:02 PM, Chanwoo Choi <[email protected]> wrote:
> Hi,
>
> On 2017년 06월 30일 16:22, Gustavo A. R. Silva wrote:
>> Print and propagate the return value of platform_get_irq on failure.
>>
>> Signed-off-by: Gustavo A. R. Silva <[email protected]>
>> ---
>> drivers/devfreq/tegra-devfreq.c | 6 +++---
>> 1 file changed, 3 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/devfreq/tegra-devfreq.c b/drivers/devfreq/tegra-devfreq.c
>> index 214fff9..ae71215 100644
>> --- a/drivers/devfreq/tegra-devfreq.c
>> +++ b/drivers/devfreq/tegra-devfreq.c
>> @@ -688,9 +688,9 @@ static int tegra_devfreq_probe(struct platform_device *pdev)
>> }
>>
>> irq = platform_get_irq(pdev, 0);
>> - if (irq <= 0) {
>> - dev_err(&pdev->dev, "Failed to get IRQ\n");
>> - return -ENODEV;
>> + if (irq < 0) {
>> + dev_err(&pdev->dev, "Failed to get IRQ: %d\n", irq);
>> + return irq;
>> }
>>
>> platform_set_drvdata(pdev, tegra);
>>
>
> Reviewed-by: Chanwoo Choi <[email protected]>
Acked-by: MyungJoo Ham <[email protected]>
>
> --
> Best Regards,
> Chanwoo Choi
> Samsung Electronics
--
MyungJoo Ham, Ph.D.
S/W Center, Samsung Electronics
On 30/06/17 08:22, Gustavo A. R. Silva wrote:
> Print and propagate the return value of platform_get_irq on failure.
>
> Signed-off-by: Gustavo A. R. Silva <[email protected]>
> ---
> drivers/devfreq/tegra-devfreq.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/devfreq/tegra-devfreq.c b/drivers/devfreq/tegra-devfreq.c
> index 214fff9..ae71215 100644
> --- a/drivers/devfreq/tegra-devfreq.c
> +++ b/drivers/devfreq/tegra-devfreq.c
> @@ -688,9 +688,9 @@ static int tegra_devfreq_probe(struct platform_device *pdev)
> }
>
> irq = platform_get_irq(pdev, 0);
> - if (irq <= 0) {
> - dev_err(&pdev->dev, "Failed to get IRQ\n");
> - return -ENODEV;
> + if (irq < 0) {
The changelog does not describe the above change and if/why this is ok.
However, the original test looks fine to me and so I don't see a need to
change this.
> + dev_err(&pdev->dev, "Failed to get IRQ: %d\n", irq);
> + return irq;
Why not have ...
return irq ? irq : -ENODEV;
Cheers
Jon
--
nvpublic
Hi Jon,
Quoting Jon Hunter <[email protected]>:
> On 30/06/17 08:22, Gustavo A. R. Silva wrote:
>> Print and propagate the return value of platform_get_irq on failure.
>>
>> Signed-off-by: Gustavo A. R. Silva <[email protected]>
>> ---
>> drivers/devfreq/tegra-devfreq.c | 6 +++---
>> 1 file changed, 3 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/devfreq/tegra-devfreq.c
>> b/drivers/devfreq/tegra-devfreq.c
>> index 214fff9..ae71215 100644
>> --- a/drivers/devfreq/tegra-devfreq.c
>> +++ b/drivers/devfreq/tegra-devfreq.c
>> @@ -688,9 +688,9 @@ static int tegra_devfreq_probe(struct
>> platform_device *pdev)
>> }
>>
>> irq = platform_get_irq(pdev, 0);
>> - if (irq <= 0) {
>> - dev_err(&pdev->dev, "Failed to get IRQ\n");
>> - return -ENODEV;
>> + if (irq < 0) {
>
> The changelog does not describe the above change and if/why this is ok.
> However, the original test looks fine to me and so I don't see a need to
> change this.
>
You are right about the changelog. I think this one is much better:
platform_get_irq() returns an error code, but the tegra-devfreq
driver ignores it and always returns -ENODEV. This is not correct,
and prevents -EPROBE_DEFER from being propagated properly.
Notice that platform_get_irq() no longer returns 0 on error:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e330b9a6bb35dc7097a4f02cb1ae7b6f96df92af
Print error message and propagate the return value of
platform_get_irq on failure.
What do you think?
Thank you!
--
Gustavo A. R. Silva
On 03/07/17 12:59, Gustavo A. R. Silva wrote:
> Hi Jon,
>
> Quoting Jon Hunter <[email protected]>:
>
>> On 30/06/17 08:22, Gustavo A. R. Silva wrote:
>>> Print and propagate the return value of platform_get_irq on failure.
>>>
>>> Signed-off-by: Gustavo A. R. Silva <[email protected]>
>>> ---
>>> drivers/devfreq/tegra-devfreq.c | 6 +++---
>>> 1 file changed, 3 insertions(+), 3 deletions(-)
>>>
>>> diff --git a/drivers/devfreq/tegra-devfreq.c
>>> b/drivers/devfreq/tegra-devfreq.c
>>> index 214fff9..ae71215 100644
>>> --- a/drivers/devfreq/tegra-devfreq.c
>>> +++ b/drivers/devfreq/tegra-devfreq.c
>>> @@ -688,9 +688,9 @@ static int tegra_devfreq_probe(struct
>>> platform_device *pdev)
>>> }
>>>
>>> irq = platform_get_irq(pdev, 0);
>>> - if (irq <= 0) {
>>> - dev_err(&pdev->dev, "Failed to get IRQ\n");
>>> - return -ENODEV;
>>> + if (irq < 0) {
>>
>> The changelog does not describe the above change and if/why this is ok.
>> However, the original test looks fine to me and so I don't see a need to
>> change this.
>>
>
> You are right about the changelog. I think this one is much better:
>
> platform_get_irq() returns an error code, but the tegra-devfreq
> driver ignores it and always returns -ENODEV. This is not correct,
> and prevents -EPROBE_DEFER from being propagated properly.
>
> Notice that platform_get_irq() no longer returns 0 on error:
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e330b9a6bb35dc7097a4f02cb1ae7b6f96df92af
Yes the above should be added to the changelog.
Looks like someone should update the following for consistency too ...
141 int platform_irq_count(struct platform_device *dev)
142 {
143 int ret, nr = 0;
144
145 while ((ret = platform_get_irq(dev, nr)) >= 0)
146 nr++;
>
> Print error message and propagate the return value of
> platform_get_irq on failure.
>
> What do you think?
Fine with me.
Thanks!
Jon
--
nvpublic
platform_get_irq() returns an error code, but the tegra-devfreq
driver ignores it and always returns -ENODEV. This is not correct,
and prevents -EPROBE_DEFER from being propagated properly.
Notice that platform_get_irq() no longer returns 0 on error:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e330b9a6bb35dc7097a4f02cb1ae7b6f96df92af
Print and propagate the return value of platform_get_irq on failure.
Reviewed-by: Chanwoo Choi <[email protected]>
Acked-by: MyungJoo Ham <[email protected]>
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
Changes in v2:
Rewrite commit message.
drivers/devfreq/tegra-devfreq.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/devfreq/tegra-devfreq.c b/drivers/devfreq/tegra-devfreq.c
index 214fff9..ae71215 100644
--- a/drivers/devfreq/tegra-devfreq.c
+++ b/drivers/devfreq/tegra-devfreq.c
@@ -688,9 +688,9 @@ static int tegra_devfreq_probe(struct platform_device *pdev)
}
irq = platform_get_irq(pdev, 0);
- if (irq <= 0) {
- dev_err(&pdev->dev, "Failed to get IRQ\n");
- return -ENODEV;
+ if (irq < 0) {
+ dev_err(&pdev->dev, "Failed to get IRQ: %d\n", irq);
+ return irq;
}
platform_set_drvdata(pdev, tegra);
--
2.5.0
On 03/07/17 13:47, Gustavo A. R. Silva wrote:
> platform_get_irq() returns an error code, but the tegra-devfreq
> driver ignores it and always returns -ENODEV. This is not correct,
> and prevents -EPROBE_DEFER from being propagated properly.
>
> Notice that platform_get_irq() no longer returns 0 on error:
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e330b9a6bb35dc7097a4f02cb1ae7b6f96df92af
>
> Print and propagate the return value of platform_get_irq on failure.
>
> Reviewed-by: Chanwoo Choi <[email protected]>
> Acked-by: MyungJoo Ham <[email protected]>
> Signed-off-by: Gustavo A. R. Silva <[email protected]>
> ---
> Changes in v2:
> Rewrite commit message.
>
> drivers/devfreq/tegra-devfreq.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/devfreq/tegra-devfreq.c b/drivers/devfreq/tegra-devfreq.c
> index 214fff9..ae71215 100644
> --- a/drivers/devfreq/tegra-devfreq.c
> +++ b/drivers/devfreq/tegra-devfreq.c
> @@ -688,9 +688,9 @@ static int tegra_devfreq_probe(struct platform_device *pdev)
> }
>
> irq = platform_get_irq(pdev, 0);
> - if (irq <= 0) {
> - dev_err(&pdev->dev, "Failed to get IRQ\n");
> - return -ENODEV;
> + if (irq < 0) {
> + dev_err(&pdev->dev, "Failed to get IRQ: %d\n", irq);
> + return irq;
> }
>
> platform_set_drvdata(pdev, tegra);
Thanks.
Acked-by: Jon Hunter <[email protected]>
Cheers
Jon
--
nvpublic
On 07/04/2017 03:35 AM, Jon Hunter wrote:
>
> On 03/07/17 13:47, Gustavo A. R. Silva wrote:
>> platform_get_irq() returns an error code, but the tegra-devfreq
>> driver ignores it and always returns -ENODEV. This is not correct,
>> and prevents -EPROBE_DEFER from being propagated properly.
>>
>> Notice that platform_get_irq() no longer returns 0 on error:
>> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e330b9a6bb35dc7097a4f02cb1ae7b6f96df92af
>>
>> Print and propagate the return value of platform_get_irq on failure.
>>
>> Reviewed-by: Chanwoo Choi <[email protected]>
>> Acked-by: MyungJoo Ham <[email protected]>
>> Signed-off-by: Gustavo A. R. Silva <[email protected]>
>> ---
>> Changes in v2:
>> Rewrite commit message.
>>
>> drivers/devfreq/tegra-devfreq.c | 6 +++---
>> 1 file changed, 3 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/devfreq/tegra-devfreq.c b/drivers/devfreq/tegra-devfreq.c
>> index 214fff9..ae71215 100644
>> --- a/drivers/devfreq/tegra-devfreq.c
>> +++ b/drivers/devfreq/tegra-devfreq.c
>> @@ -688,9 +688,9 @@ static int tegra_devfreq_probe(struct platform_device *pdev)
>> }
>>
>> irq = platform_get_irq(pdev, 0);
>> - if (irq <= 0) {
>> - dev_err(&pdev->dev, "Failed to get IRQ\n");
>> - return -ENODEV;
>> + if (irq < 0) {
>> + dev_err(&pdev->dev, "Failed to get IRQ: %d\n", irq);
>> + return irq;
>> }
>>
>> platform_set_drvdata(pdev, tegra);
>
> Thanks.
>
> Acked-by: Jon Hunter <[email protected]>
>
Thank you, Jon.
--
Gustavo A. R. Silva