linux-kernel - [PATCH -next] iio: frequency: adf4350: disable reg and clk on error in adf4350

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Date:   Tue, 1 Jun 2021 22:26:05 +0800
From:   Yang Yingliang <yangyingliang@...wei.com>
To:     <linux-kernel@...r.kernel.org>, <linux-iio@...r.kernel.org>
CC:     <jic23@...nel.org>, <lars@...afoo.de>,
        <Michael.Hennerich@...log.com>
Subject: [PATCH -next] iio: frequency: adf4350: disable reg and clk on error in adf4350_probe()

Disable reg and clk when devm_gpiod_get_optional() fails in adf4350_probe().

Fixes:4a89d2f47ccd ("iio: adf4350: Convert to use GPIO descriptor")
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
---
 drivers/iio/frequency/adf4350.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/frequency/adf4350.c b/drivers/iio/frequency/adf4350.c
index 1462a6a5bc6d..3d9eba716b69 100644
--- a/drivers/iio/frequency/adf4350.c
+++ b/drivers/iio/frequency/adf4350.c
@@ -563,8 +563,10 @@ static int adf4350_probe(struct spi_device *spi)
 
 	st->lock_detect_gpiod = devm_gpiod_get_optional(&spi->dev, NULL,
 							GPIOD_IN);
-	if (IS_ERR(st->lock_detect_gpiod))
-		return PTR_ERR(st->lock_detect_gpiod);
+	if (IS_ERR(st->lock_detect_gpiod)) {
+		ret = PTR_ERR(st->lock_detect_gpiod);
+		goto error_disable_reg;
+	}
 
 	if (pdata->power_up_frequency) {
 		ret = adf4350_set_freq(st, pdata->power_up_frequency);
-- 
2.25.1