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From: Andy Shevchenko <andriy.shevchenko@intel.com>
To: "Farber, Eliav" <farbere@amazon.com>
Cc: jdelvare@suse.com, linux@roeck-us.net, robh+dt@kernel.org,
	p.zabel@pengutronix.de, rtanwar@maxlinear.com,
	linux-hwmon@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, talel@amazon.com,
	hhhawa@amazon.com, jonnyc@amazon.com, hanochu@amazon.com,
	ronenk@amazon.com, itamark@amazon.com, shellykz@amazon.com,
	shorer@amazon.com, amitlavi@amazon.com, almogbs@amazon.com,
	dkl@amazon.com
Subject: Re: [PATCH v3 18/19] hwmon: (mr75203) add debugfs to read and write temperature coefficients
Date: Thu, 1 Sep 2022 22:46:41 +0300	[thread overview]
Message-ID: <YxEMIdBMOeDBsu5D@smile.fi.intel.com> (raw)
In-Reply-To: <646af681-38b0-1268-3798-c5434ca30bee@amazon.com>

On Thu, Sep 01, 2022 at 09:54:21AM +0300, Farber, Eliav wrote:
> On 8/31/2022 3:14 PM, Andy Shevchenko wrote:
> > On Tue, Aug 30, 2022 at 07:22:11PM +0000, Eliav Farber wrote:

...

> > > +     pvt->dbgfs_dir = debugfs_create_dir(dev_name(dev), NULL);
> > 
> > > +     if (!pvt->dbgfs_dir) {
> > > +             dev_err(dev, "Failed to create dbgfs_dir\n");
> > > +             return -EINVAL;
> > > +     }
> > 
> > No, just don't check the return value of debugfs API calls.
> > 
> Do you mean that I should just do:
> debugfs_create_dir(dev_name(dev), NULL);
> Can you please explain why it's OK to ignore the return value?

Author of the debugfs is speaking:
https://patchwork.kernel.org/project/linux-wireless/patch/20190122152151.16139-38-gregkh@linuxfoundation.org/

-- 
With Best Regards,
Andy Shevchenko



  parent reply	other threads:[~2022-09-01 19:47 UTC|newest]

Thread overview: 88+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-30 19:21 [PATCH v3 00/19] Variety of fixes and new features for mr75203 driver Eliav Farber
2022-08-30 19:21 ` [PATCH v3 01/19] dt-bindings: hwmon: (mr75203) update "intel,vm-map" property to be optional Eliav Farber
2022-09-02 19:50   ` Rob Herring
2022-08-30 19:21 ` [PATCH v3 02/19] hwmon: (mr75203) fix VM sensor allocation when "intel,vm-map" not defined Eliav Farber
2022-08-31  2:39   ` Guenter Roeck
2022-08-31  4:36     ` [PATCH v3 02/19] hwmon: (mr75203) fix VM sensor allocation when "intel, vm-map" " Farber, Eliav
2022-08-31  5:36   ` [PATCH v3 02/19] hwmon: (mr75203) fix VM sensor allocation when "intel,vm-map" " Guenter Roeck
2022-08-31  5:49     ` [PATCH v3 02/19] hwmon: (mr75203) fix VM sensor allocation when "intel, vm-map" " Farber, Eliav
2022-08-31  6:09       ` Farber, Eliav
2022-08-31 11:48       ` Guenter Roeck
2022-09-01  8:39         ` Farber, Eliav
2022-09-01 14:44           ` Guenter Roeck
2022-09-01 15:24             ` Farber, Eliav
2022-09-01 17:11               ` Guenter Roeck
2022-09-01 18:36                 ` Farber, Eliav
2022-09-01 19:25                   ` Guenter Roeck
2022-09-01 19:49               ` Andy Shevchenko
2022-08-31  9:38   ` [PATCH v3 02/19] hwmon: (mr75203) fix VM sensor allocation when "intel,vm-map" " Andy Shevchenko
2022-09-02 12:08     ` [PATCH v3 02/19] hwmon: (mr75203) fix VM sensor allocation when "intel, vm-map" " Farber, Eliav
2022-09-02 14:15       ` Andy Shevchenko
2022-08-30 19:21 ` [PATCH v3 03/19] hwmon: (mr75203) update pvt->v_num to the actual number of used sensors Eliav Farber
2022-08-31  2:41   ` Guenter Roeck
2022-08-31  4:50     ` Farber, Eliav
2022-08-31  5:31       ` Guenter Roeck
2022-08-30 19:21 ` [PATCH v3 04/19] dt-bindings: hwmon: (mr75203) change "reset" property to be optional Eliav Farber
2022-08-31  8:21   ` Philipp Zabel
2022-08-31  9:43     ` Farber, Eliav
2022-08-31  9:48       ` Philipp Zabel
2022-09-02 19:51   ` Rob Herring
2022-09-03 19:16     ` Farber, Eliav
2022-08-30 19:21 ` [PATCH v3 05/19] hwmon: (mr75203) skip reset-control deassert for SOCs that don't support it Eliav Farber
2022-08-31  8:19   ` Philipp Zabel
2022-08-30 19:21 ` [PATCH v3 06/19] hwmon: (mr75203) fix multi-channel voltage reading Eliav Farber
2022-08-31  9:46   ` Andy Shevchenko
2022-09-01 13:12     ` Farber, Eliav
2022-08-30 19:22 ` [PATCH v3 07/19] hwmon: (mr75203) enable polling for all VM channels Eliav Farber
2022-08-31 11:21   ` Andy Shevchenko
2022-08-31 11:55     ` Farber, Eliav
2022-08-30 19:22 ` [PATCH v3 08/19] dt-bindings: hwmon: (mr75203) add "moortec,vm-active-channels" property Eliav Farber
2022-08-31 11:39   ` Rob Herring
     [not found]     ` <a8557b5a-6e27-2e66-161e-814fc0f69c1d@amazon.com>
2022-08-31 12:17       ` [PATCH v3 08/19] dt-bindings: hwmon: (mr75203) add "moortec, vm-active-channels" property Rob Herring
2022-08-31 17:47         ` Farber, Eliav
2022-08-31 19:19           ` Rob Herring
2022-08-31 19:55             ` Farber, Eliav
2022-08-30 19:22 ` [PATCH v3 09/19] hwmon: (mr75203) add VM active channel support Eliav Farber
2022-08-31 11:48   ` Andy Shevchenko
2022-09-02 12:04     ` Farber, Eliav
2022-08-30 19:22 ` [PATCH v3 10/19] dt-bindings: hwmon: (mr75203) add "moortec,vm-pre-scaler" property Eliav Farber
2022-09-02 19:57   ` Rob Herring
2022-09-03 19:34     ` [PATCH v3 10/19] dt-bindings: hwmon: (mr75203) add "moortec, vm-pre-scaler" property Farber, Eliav
2022-08-30 19:22 ` [PATCH v3 11/19] hwmon: (mr75203) add VM pre-scaler support Eliav Farber
2022-08-31 12:02   ` Andy Shevchenko
2022-09-01 14:17     ` Farber, Eliav
2022-08-30 19:22 ` [PATCH v3 12/19] hwmon: (mr75203) fix voltage equation for negative source input Eliav Farber
2022-08-31 12:04   ` Andy Shevchenko
2022-09-01 12:47     ` Farber, Eliav
2022-09-01 20:08       ` Andy Shevchenko
2022-08-30 19:22 ` [PATCH v3 13/19] hwmon: (mr75203) modify the temperature equation according to series 5 datasheet Eliav Farber
2022-08-31 12:06   ` Andy Shevchenko
2022-09-01 12:22     ` Farber, Eliav
2022-08-30 19:22 ` [PATCH v3 14/19] dt-bindings: hwmon: (mr75203) add "moortec,ts-series" property Eliav Farber
2022-08-31  8:23   ` Philipp Zabel
2022-08-31  9:23     ` [PATCH v3 14/19] dt-bindings: hwmon: (mr75203) add "moortec, ts-series" property Farber, Eliav
2022-08-31  9:42       ` Philipp Zabel
2022-09-02 13:18         ` Farber, Eliav
2022-09-02 19:59   ` [PATCH v3 14/19] dt-bindings: hwmon: (mr75203) add "moortec,ts-series" property Rob Herring
2022-09-03 19:12     ` [PATCH v3 14/19] dt-bindings: hwmon: (mr75203) add "moortec, ts-series" property Farber, Eliav
2022-08-30 19:22 ` [PATCH v3 15/19] hwmon: (mr75203) add support for series 6 temperature equation Eliav Farber
2022-08-31 12:08   ` Andy Shevchenko
2022-09-01 12:14     ` Farber, Eliav
2022-08-30 19:22 ` [PATCH v3 16/19] dt-bindings: hwmon: (mr75203) add coefficient properties for the thermal equation Eliav Farber
2022-09-02 20:03   ` Rob Herring
2022-09-03 19:16     ` Farber, Eliav
2022-08-30 19:22 ` [PATCH v3 17/19] hwmon: (mr75203) parse temperature coefficients from device-tree Eliav Farber
2022-08-31 12:11   ` Andy Shevchenko
2022-09-01  9:54     ` Farber, Eliav
2022-08-30 19:22 ` [PATCH v3 18/19] hwmon: (mr75203) add debugfs to read and write temperature coefficients Eliav Farber
2022-08-31 12:14   ` Andy Shevchenko
2022-09-01  6:54     ` Farber, Eliav
2022-09-01 14:28       ` Guenter Roeck
2022-09-01 19:46       ` Andy Shevchenko [this message]
2022-08-30 19:22 ` [PATCH v3 19/19] hwmon: (mr75203) fix coding style space errors Eliav Farber
2022-08-31 12:15   ` Andy Shevchenko
2022-09-01 14:21     ` Farber, Eliav
2022-09-01 14:46       ` Guenter Roeck
2022-09-01 15:31         ` Farber, Eliav
2022-09-01 17:09           ` Guenter Roeck
2022-09-01 18:40             ` Farber, Eliav

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