* [PATCH] gpio: gpio-bt8xx: fix compilation warning
@ 2014-05-14 21:43 abdoulaye berthe
2014-05-14 21:52 ` Michael Büsch
0 siblings, 1 reply; 3+ messages in thread
From: abdoulaye berthe @ 2014-05-14 21:43 UTC (permalink / raw)
To: m, linus.walleij, gnurou, linux-gpio, linux-kernel, berthe.ab
this fixes a compilation warning by checking
the retun value of gpiochip_remove()
Signed-off-by: abdoulaye berthe <berthe.ab@gmail.com>
---
drivers/gpio/gpio-bt8xx.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpio/gpio-bt8xx.c b/drivers/gpio/gpio-bt8xx.c
index ecb3ca2d..5480229 100644
--- a/drivers/gpio/gpio-bt8xx.c
+++ b/drivers/gpio/gpio-bt8xx.c
@@ -240,7 +240,8 @@ static void bt8xxgpio_remove(struct pci_dev *pdev)
{
struct bt8xxgpio *bg = pci_get_drvdata(pdev);
- gpiochip_remove(&bg->gpio);
+ if (gpiochip_remove(&bg->gpio))
+ dev_info(&pdev->dev, "gpiochip_remove() failed.\n");
bgwrite(0, BT848_INT_MASK);
bgwrite(~0x0, BT848_INT_STAT);
--
1.8.3.2
^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [PATCH] gpio: gpio-bt8xx: fix compilation warning
2014-05-14 21:43 [PATCH] gpio: gpio-bt8xx: fix compilation warning abdoulaye berthe
@ 2014-05-14 21:52 ` Michael Büsch
2014-05-16 15:51 ` Linus Walleij
0 siblings, 1 reply; 3+ messages in thread
From: Michael Büsch @ 2014-05-14 21:52 UTC (permalink / raw)
To: abdoulaye berthe; +Cc: linus.walleij, gnurou, linux-gpio, linux-kernel
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On Wed, 14 May 2014 23:43:36 +0200
abdoulaye berthe <berthe.ab@gmail.com> wrote:
> this fixes a compilation warning by checking
> the retun value of gpiochip_remove()
Really, I would rather change the gpiochip_remove return type to void.
What is the point of printing a useless error message in case
of a failure and then continuing as always.
This is not fixing a compiler warning, it is a workaround. And a bad one, indeed.
How are we supposed to handle a gpiochip_remove failure correctly
in a pcidev remove handler?
> Signed-off-by: abdoulaye berthe <berthe.ab@gmail.com>
> ---
> drivers/gpio/gpio-bt8xx.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpio/gpio-bt8xx.c b/drivers/gpio/gpio-bt8xx.c
> index ecb3ca2d..5480229 100644
> --- a/drivers/gpio/gpio-bt8xx.c
> +++ b/drivers/gpio/gpio-bt8xx.c
> @@ -240,7 +240,8 @@ static void bt8xxgpio_remove(struct pci_dev *pdev)
> {
> struct bt8xxgpio *bg = pci_get_drvdata(pdev);
>
> - gpiochip_remove(&bg->gpio);
> + if (gpiochip_remove(&bg->gpio))
> + dev_info(&pdev->dev, "gpiochip_remove() failed.\n");
>
> bgwrite(0, BT848_INT_MASK);
> bgwrite(~0x0, BT848_INT_STAT);
--
Michael.
----
Please use PGP/GPG encryption.
Key-ID: F532BE1D908D8B0E
--------
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 836 bytes --]
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH] gpio: gpio-bt8xx: fix compilation warning
2014-05-14 21:52 ` Michael Büsch
@ 2014-05-16 15:51 ` Linus Walleij
0 siblings, 0 replies; 3+ messages in thread
From: Linus Walleij @ 2014-05-16 15:51 UTC (permalink / raw)
To: Michael Büsch
Cc: abdoulaye berthe, Alexandre Courbot, linux-gpio@vger.kernel.org,
linux-kernel@vger.kernel.org
On Wed, May 14, 2014 at 11:52 PM, Michael Büsch <m@bues.ch> wrote:
> On Wed, 14 May 2014 23:43:36 +0200
> abdoulaye berthe <berthe.ab@gmail.com> wrote:
>
>> this fixes a compilation warning by checking
>> the retun value of gpiochip_remove()
>
>
> Really, I would rather change the gpiochip_remove return type to void.
Good point.
Dropping this patch in favor of real solution.
Yours,
Linus Walleij
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2014-05-16 15:51 UTC | newest]
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2014-05-14 21:43 [PATCH] gpio: gpio-bt8xx: fix compilation warning abdoulaye berthe
2014-05-14 21:52 ` Michael Büsch
2014-05-16 15:51 ` Linus Walleij
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