From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Bartosz Golaszewski <brgl@bgdev.pl>
Cc: Linus Walleij <linus.walleij@linaro.org>,
Kent Gibson <warthog618@gmail.com>, Alex Elder <elder@linaro.org>,
Geert Uytterhoeven <geert+renesas@glider.be>,
"Paul E . McKenney" <paulmck@kernel.org>,
Wolfram Sang <wsa@the-dreams.de>,
linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org,
Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Subject: Re: [PATCH v3 19/24] gpio: remove unnecessary checks from gpiod_to_chip()
Date: Fri, 9 Feb 2024 15:59:37 +0200 [thread overview]
Message-ID: <ZcYvycJ9wXfKIGYg@smile.fi.intel.com> (raw)
In-Reply-To: <CAMRc=Me75F3KmTJbiNZKXNpwU0a_fSd3UffWORwXzDLKAMcXag@mail.gmail.com>
On Thu, Feb 08, 2024 at 08:34:56PM +0100, Bartosz Golaszewski wrote:
> On Thu, Feb 8, 2024 at 8:24 PM Andy Shevchenko
> <andriy.shevchenko@linux.intel.com> wrote:
> > On Thu, Feb 08, 2024 at 08:17:14PM +0100, Bartosz Golaszewski wrote:
> > > On Thu, Feb 8, 2024 at 6:39 PM Andy Shevchenko
> > > <andriy.shevchenko@linux.intel.com> wrote:
> > > > On Thu, Feb 08, 2024 at 10:59:15AM +0100, Bartosz Golaszewski wrote:
...
> > > > > - if (!desc || IS_ERR(desc) || !desc->gdev || !desc->gdev->chip)
> > > > > + if (!desc || IS_ERR(desc))
> > > >
> > > > IS_ERR_OR_NULL()
> > >
> > > Ah, good point. It's a small nit though so I'll fix it when applying
> > > barring some major objections for the rest.
> > >
> > > > > return -EINVAL;
> >
> > thinking more about it, shouldn't we return an actual error to the caller which
> > is in desc?
> >
> > if (!desc)
> > return -EINVAL;
> > if (IS_ERR(desc))
> > return PTR_ERR(desc);
> >
> > ?
>
> Hmm... maybe but that's out of the scope of this series.
Yeah, but just think about it.
--
With Best Regards,
Andy Shevchenko
next prev parent reply other threads:[~2024-02-09 13:59 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20240213120518eucas1p2d514aac6e6d1e29bbae05f32db6724db@eucas1p2.samsung.com>
2024-02-08 9:58 ` [PATCH v3 00/24] gpio: rework locking and object life-time control Bartosz Golaszewski
2024-02-08 9:58 ` [PATCH v3 01/24] gpio: protect the list of GPIO devices with SRCU Bartosz Golaszewski
2024-02-10 11:00 ` Hillf Danton
2024-02-10 11:07 ` Bartosz Golaszewski
2024-02-08 9:58 ` [PATCH v3 02/24] gpio: of: assign and read the hog pointer atomically Bartosz Golaszewski
2024-02-08 9:58 ` [PATCH v3 03/24] gpio: remove unused logging helpers Bartosz Golaszewski
2024-02-08 9:59 ` [PATCH v3 04/24] gpio: provide and use gpiod_get_label() Bartosz Golaszewski
2024-02-08 9:59 ` [PATCH v3 05/24] gpio: don't set label from irq helpers Bartosz Golaszewski
2024-02-08 9:59 ` [PATCH v3 06/24] gpio: add SRCU infrastructure to struct gpio_desc Bartosz Golaszewski
2024-02-08 9:59 ` [PATCH v3 07/24] gpio: protect the descriptor label with SRCU Bartosz Golaszewski
2024-02-12 14:56 ` kernel test robot
2024-02-13 21:16 ` Mark Brown
2024-02-13 22:07 ` Bartosz Golaszewski
2024-02-08 9:59 ` [PATCH v3 08/24] gpio: sysfs: use gpio_device_find() to iterate over existing devices Bartosz Golaszewski
2024-02-08 9:59 ` [PATCH v3 09/24] gpio: remove gpio_lock Bartosz Golaszewski
2024-02-08 9:59 ` [PATCH v3 10/24] gpio: reinforce desc->flags handling Bartosz Golaszewski
2024-02-08 9:59 ` [PATCH v3 11/24] gpio: remove unneeded code from gpio_device_get_desc() Bartosz Golaszewski
2024-02-08 9:59 ` [PATCH v3 12/24] gpio: sysfs: extend the critical section for unregistering sysfs devices Bartosz Golaszewski
2024-02-08 9:59 ` [PATCH v3 13/24] gpio: sysfs: pass the GPIO device - not chip - to sysfs callbacks Bartosz Golaszewski
2024-02-08 9:59 ` [PATCH v3 14/24] gpio: cdev: replace gpiochip_get_desc() with gpio_device_get_desc() Bartosz Golaszewski
2024-02-08 9:59 ` [PATCH v3 15/24] gpio: cdev: don't access gdev->chip if it's not needed Bartosz Golaszewski
2024-02-08 9:59 ` [PATCH v3 16/24] gpio: sysfs: " Bartosz Golaszewski
2024-02-08 12:20 ` Linus Walleij
2024-02-08 9:59 ` [PATCH v3 17/24] gpio: don't dereference gdev->chip in gpiochip_setup_dev() Bartosz Golaszewski
2024-02-08 12:21 ` Linus Walleij
2024-02-08 9:59 ` [PATCH v3 18/24] gpio: reduce the functionality of validate_desc() Bartosz Golaszewski
2024-02-08 9:59 ` [PATCH v3 19/24] gpio: remove unnecessary checks from gpiod_to_chip() Bartosz Golaszewski
2024-02-08 17:39 ` Andy Shevchenko
2024-02-08 19:17 ` Bartosz Golaszewski
2024-02-08 19:24 ` Andy Shevchenko
2024-02-08 19:34 ` Bartosz Golaszewski
2024-02-09 13:59 ` Andy Shevchenko [this message]
2024-02-08 9:59 ` [PATCH v3 20/24] gpio: add the can_sleep flag to struct gpio_device Bartosz Golaszewski
2024-02-08 9:59 ` [PATCH v3 21/24] gpio: add SRCU infrastructure " Bartosz Golaszewski
2024-02-08 9:59 ` [PATCH v3 22/24] gpio: protect the pointer to gpio_chip in gpio_device with SRCU Bartosz Golaszewski
2024-02-12 15:09 ` kernel test robot
2024-02-12 16:56 ` Bartosz Golaszewski
2024-02-12 21:20 ` Bartosz Golaszewski
2024-02-13 8:10 ` Bartosz Golaszewski
2024-02-08 9:59 ` [PATCH v3 23/24] gpio: remove the RW semaphore from the GPIO device Bartosz Golaszewski
2024-02-10 5:37 ` Kent Gibson
2024-02-12 9:53 ` Bartosz Golaszewski
2024-02-12 9:57 ` Kent Gibson
2024-02-12 9:59 ` Bartosz Golaszewski
2024-02-08 9:59 ` [PATCH v3 24/24] gpio: mark unsafe gpio_chip manipulators as deprecated Bartosz Golaszewski
2024-02-08 17:43 ` [PATCH v3 00/24] gpio: rework locking and object life-time control Andy Shevchenko
2024-02-12 10:07 ` Bartosz Golaszewski
2024-02-13 12:05 ` Marek Szyprowski
2024-02-13 12:08 ` Bartosz Golaszewski
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