From: Fabien Parent <fparent@baylibre.com>
To: linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org,
linux-arm-kernel@lists.infradead.org, linux-iio@vger.kernel.org
Cc: chun-hung.wu@mediatek.com, alexandru.ardelean@analog.com,
matthias.bgg@gmail.com, pmeerw@pmeerw.net, lars@metafoo.de,
knaack.h@gmx.de, jic23@kernel.org,
Fabien Parent <fparent@baylibre.com>
Subject: [PATCH] iio: adc: mediatek: fix unset field
Date: Mon, 12 Oct 2020 21:46:18 +0200 [thread overview]
Message-ID: <20201012194618.2170970-1-fparent@baylibre.com> (raw)
dev_comp field is used in a couple of places but it is never set. This
results in kernel oops when dereferencing a NULL pointer. Set the
`dev_comp` field correctly in the probe function.
Fixes: 6d97024dce23 ("iio: adc: mediatek: mt6577-auxadc, add mt6765 support")
Signed-off-by: Fabien Parent <fparent@baylibre.com>
---
drivers/iio/adc/mt6577_auxadc.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/iio/adc/mt6577_auxadc.c b/drivers/iio/adc/mt6577_auxadc.c
index ac415cb089cd..7bd48377cd79 100644
--- a/drivers/iio/adc/mt6577_auxadc.c
+++ b/drivers/iio/adc/mt6577_auxadc.c
@@ -276,6 +276,8 @@ static int mt6577_auxadc_probe(struct platform_device *pdev)
goto err_disable_clk;
}
+ adc_dev->dev_comp = of_device_get_match_data(&pdev->dev);
+
mutex_init(&adc_dev->lock);
mt6577_auxadc_mod_reg(adc_dev->reg_base + MT6577_AUXADC_MISC,
--
2.28.0
next reply other threads:[~2020-10-12 19:46 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-12 19:46 Fabien Parent [this message]
2020-10-13 15:37 ` [PATCH] iio: adc: mediatek: fix unset field Matthias Brugger
2020-10-18 10:07 ` Jonathan Cameron
2020-10-18 17:16 ` Fabien Parent
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