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Sun, 15 Mar 2026 12:15:58 -0700 (PDT) Message-ID: <706a349f-63e5-4f47-9f77-c84db1058f5e@gmail.com> Date: Sun, 15 Mar 2026 21:15:51 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 5/6] iio: light: vcnl4000: remove error messages for trigger and irq To: Jonathan Cameron Cc: David Lechner , =?UTF-8?Q?Nuno_S=C3=A1?= , Andy Shevchenko , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Peter Meerwald , linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org References: <20260314-vcnl4000-regulators-v3-0-3c4a48d30676@gmail.com> <20260314-vcnl4000-regulators-v3-5-3c4a48d30676@gmail.com> <20260315183127.59036e25@jic23-huawei> Content-Language: en-US From: Erikas Bitovtas In-Reply-To: <20260315183127.59036e25@jic23-huawei> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 3/15/26 8:31 PM, Jonathan Cameron wrote: > On Sat, 14 Mar 2026 18:06:34 +0200 > Erikas Bitovtas wrote: > >> The error code is available in the log after return. Remove duplicate >> error messages to reduce noise in dmesg. >> >> Signed-off-by: Erikas Bitovtas >> --- >> drivers/iio/light/vcnl4000.c | 9 ++------- >> 1 file changed, 2 insertions(+), 7 deletions(-) >> >> diff --git a/drivers/iio/light/vcnl4000.c b/drivers/iio/light/vcnl4000.c >> index e501db7249d7..c8bb1826b916 100644 >> --- a/drivers/iio/light/vcnl4000.c >> +++ b/drivers/iio/light/vcnl4000.c >> @@ -2041,11 +2041,8 @@ static int vcnl4000_probe(struct i2c_client *client) >> NULL, >> data->chip_spec->trig_buffer_func, >> data->chip_spec->buffer_setup_ops); >> - if (ret < 0) { >> - dev_err(&client->dev, >> - "unable to setup iio triggered buffer\n"); > > Is this one a duplicate? I don't recall us being particular verbose > in terms of error messages in iio_triggered_buffer_setup_ext() which is > where that ends up coming from. I think there is only one path > where it can return anything other than -ENOMEM and that one is a duplicate > registration check (so fair to not print). So perhaps all this patch > needs is a comment on what errors can surface from this call and why > it is therefore not worth printing anything. > I do not see anything being printed on iio_triggered_buffer_setup_ext(), so I guess this is not a duplicate. The function can return -EADDRINUSE if a buffer is already assigned, to prevent cleanup function being called on a buffer that wasn't allocated. I will add this print back if necessary in v4.