linux-kernel - [PATCH] iio: adc: ad7780: Fix a resource handling path in 'ad7780

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Date:   Sun, 17 May 2020 11:59:53 +0200
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     Michael.Hennerich@...log.com, renatogeh@...il.com, lars@...afoo.de,
        jic23@...nel.org, knaack.h@....de, pmeerw@...erw.net,
        giuliano.belinassi@....br
Cc:     linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>
Subject: [PATCH] iio: adc: ad7780: Fix a resource handling path in 'ad7780_probe()'

If 'ad7780_init_gpios()' fails, we must not release some resources that
have not been allocated yet. Return directly instead.

Fixes: 5bb30e7daf00 ("staging: iio: ad7780: move regulator to after GPIO init")
Fixes: 9085daa4abcc ("staging: iio: ad7780: add gain & filter gpio support")
Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
 drivers/iio/adc/ad7780.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/adc/ad7780.c b/drivers/iio/adc/ad7780.c
index f47606ebbbbe..b33fe6c3907e 100644
--- a/drivers/iio/adc/ad7780.c
+++ b/drivers/iio/adc/ad7780.c
@@ -329,7 +329,7 @@ static int ad7780_probe(struct spi_device *spi)
 
 	ret = ad7780_init_gpios(&spi->dev, st);
 	if (ret)
-		goto error_cleanup_buffer_and_trigger;
+		return ret;
 
 	st->reg = devm_regulator_get(&spi->dev, "avdd");
 	if (IS_ERR(st->reg))
-- 
2.25.1