From: Frank Li <Frank.li@oss.nxp.com>
To: Arnav Kapoor <kapoorarnav43@gmail.com>
Cc: "Jonathan Cameron" <jic23@kernel.org>,
"David Lechner" <dlechner@baylibre.com>,
"Nuno Sá" <nuno.sa@analog.com>,
"Andy Shevchenko" <andy@kernel.org>,
"Frank Li" <Frank.Li@nxp.com>,
"Sascha Hauer" <s.hauer@pengutronix.de>,
"Pengutronix Kernel Team" <kernel@pengutronix.de>,
"Fabio Estevam" <festevam@gmail.com>,
linux-iio@vger.kernel.org, imx@lists.linux.dev,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] iio: adc: fsl-imx25-gcq: check the return value of the
Date: Thu, 22 Oct 2026 10:55:59 -0500 [thread overview]
Message-ID: <atoyD5GpW-4uWKjq@SMW015318> (raw)
In-Reply-To: <20261021225450.628499-1-kapoorarnav43@gmail.com>
On Thu, Oct 22, 2026 at 04:24:45AM +0530, Arnav Kapoor wrote:
> [You don't often get email from kapoorarnav43@gmail.com. Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ]
>
> The driver ignores the return value of all the regmap accesses. If one
> of them fails, e.g. because the memory mapped registers can't be
> accessed, the driver just continues with an undefined state.
MMIO never return failure. if write register fail at irq, it will cause
irq storm.
Frank
next prev parent reply other threads:[~2026-10-22 15:56 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-21 22:54 Arnav Kapoor
2026-10-22 15:55 ` Frank Li [this message]
2026-10-22 16:37 ` Andy Shevchenko
2026-10-22 16:35 ` Andy Shevchenko
2026-10-22 16:44 ` Arnav Kapoor
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