From: Guenter Roeck <linux@roeck-us.net>
To: "Alice Guo (OSS)" <alice.guo@oss.nxp.com>,
gregkh@linuxfoundation.org, rafael@kernel.org,
horia.geanta@nxp.com, aymen.sghaier@nxp.com,
herbert@gondor.apana.org.au, davem@davemloft.net,
tony@atomide.com, geert+renesas@glider.be,
mturquette@baylibre.com, sboyd@kernel.org, vkoul@kernel.org,
peter.ujfalusi@gmail.com, a.hajda@samsung.com,
narmstrong@baylibre.com, robert.foss@linaro.org,
airlied@linux.ie, daniel@ffwll.ch, khilman@baylibre.com,
tomba@kernel.org, jyri.sarha@iki.fi, joro@8bytes.org,
will@kernel.org, mchehab@kernel.org, ulf.hansson@linaro.org,
adrian.hunter@intel.com, kishon@ti.com, kuba@kernel.org,
linus.walleij@linaro.org, Roy.Pledge@nxp.com, leoyang.li@nxp.com,
ssantosh@kernel.org, matthias.bgg@gmail.com, edubezval@gmail.com,
j-keerthy@ti.com, balbi@kernel.org, linux@prisktech.co.nz,
stern@rowland.harvard.edu, wim@linux-watchdog.org
Cc: linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org,
linux-omap@vger.kernel.org, linux-renesas-soc@vger.kernel.org,
linux-clk@vger.kernel.org, dmaengine@vger.kernel.org,
dri-devel@lists.freedesktop.org,
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linux-arm-kernel@lists.infradead.org,
iommu@lists.linux-foundation.org, linux-media@vger.kernel.org,
linux-mmc@vger.kernel.org, netdev@vger.kernel.org,
linux-phy@lists.infradead.org, linux-gpio@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org, linux-staging@lists.linux.dev,
linux-mediatek@lists.infradead.org, linux-pm@vger.kernel.org,
linux-usb@vger.kernel.org, linux-watchdog@vger.kernel.org
Subject: Re: [RFC v1 PATCH 3/3] driver: update all the code that use soc_device_match
Date: Mon, 19 Apr 2021 06:36:35 -0700 [thread overview]
Message-ID: <5a6550d9-083a-cc50-a6c0-ce035ceb1b2f@roeck-us.net> (raw)
In-Reply-To: <20210419042722.27554-4-alice.guo@oss.nxp.com>
On 4/18/21 9:27 PM, Alice Guo (OSS) wrote:
> From: Alice Guo <alice.guo@nxp.com>
>
> Update all the code that use soc_device_match because add support for
> soc_device_match returning -EPROBE_DEFER.
>
> Signed-off-by: Alice Guo <alice.guo@nxp.com>
> ---
[ ... ]
> drivers/watchdog/renesas_wdt.c | 2 +-
> 48 files changed, 131 insertions(+), 52 deletions(-)
>
[ ... ]
> diff --git a/drivers/watchdog/renesas_wdt.c b/drivers/watchdog/renesas_wdt.c
> index 5791198960e6..fdc534dc4024 100644
> --- a/drivers/watchdog/renesas_wdt.c
> +++ b/drivers/watchdog/renesas_wdt.c
> @@ -197,7 +197,7 @@ static bool rwdt_blacklisted(struct device *dev)
> const struct soc_device_attribute *attr;
>
> attr = soc_device_match(rwdt_quirks_match);
> - if (attr && setup_max_cpus > (uintptr_t)attr->data) {
> + if (!IS_ERR(attr) && attr && setup_max_cpus > (uintptr_t)attr->data) {
This is wrong. We can not make the decision below without having access
to attr. The function may wrongly return false if soc_device_match()
returns an error.
Guenter
> dev_info(dev, "Watchdog blacklisted on %s %s\n", attr->soc_id,
> attr->revision);
> return true;
>
next prev parent reply other threads:[~2021-04-19 13:41 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-19 4:27 [RFC v1 PATCH 0/3] support soc_device_match to return -EPROBE_DEFER Alice Guo (OSS)
2021-04-19 4:27 ` [RFC v1 PATCH 1/3] drivers: soc: add support for soc_device_match returning -EPROBE_DEFER Alice Guo (OSS)
2021-04-19 4:49 ` Dominique MARTINET
2021-04-19 6:40 ` Alice Guo (OSS)
2021-04-19 8:20 ` Geert Uytterhoeven
2021-04-20 11:21 ` Dan Carpenter
2021-04-19 4:27 ` [RFC v1 PATCH 2/3] caam: add defer probe when the caam driver cannot identify SoC Alice Guo (OSS)
2021-04-19 4:27 ` [RFC v1 PATCH 3/3] driver: update all the code that use soc_device_match Alice Guo (OSS)
2021-04-19 5:02 ` Leon Romanovsky
2021-04-19 6:46 ` Alice Guo (OSS)
2021-04-19 5:02 ` Dominique MARTINET
2021-04-19 7:09 ` Alice Guo (OSS)
2021-04-19 9:03 ` Geert Uytterhoeven
2021-04-19 9:33 ` Dominique MARTINET
2021-04-19 12:16 ` Arnd Bergmann
2021-04-19 23:42 ` Dominique MARTINET
2021-04-20 9:07 ` Arnd Bergmann
2021-04-20 9:10 ` Arnd Bergmann
2021-04-19 13:36 ` Guenter Roeck [this message]
2021-04-20 9:40 ` Péter Ujfalusi
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