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From:   Sasha Levin <sashal@kernel.org>
To:     linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc:     Colin Ian King <colin.king@canonical.com>,
        Jonathan Cameron <Jonathan.Cameron@huawei.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: [PATCH 4.19 02/84] iio: adc: Fix incorrect exit of for-loop
Date:   Tue, 24 Aug 2021 13:01:28 -0400
Message-Id: <20210824170250.710392-3-sashal@kernel.org>
In-Reply-To: <20210824170250.710392-1-sashal@kernel.org>
References: <20210824170250.710392-1-sashal@kernel.org>
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From: Colin Ian King <colin.king@canonical.com>

commit 5afc1540f13804a31bb704b763308e17688369c5 upstream.

Currently the for-loop that scans for the optimial adc_period iterates
through all the possible adc_period levels because the exit logic in
the loop is inverted. I believe the comparison should be swapped and
the continue replaced with a break to exit the loop at the correct
point.

Addresses-Coverity: ("Continue has no effect")
Fixes: e08e19c331fb ("iio:adc: add iio driver for Palmas (twl6035/7) gpadc")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20210730071651.17394-1-colin.king@canonical.com
Cc: <stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/adc/palmas_gpadc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/adc/palmas_gpadc.c b/drivers/iio/adc/palmas_gpadc.c
index 69b9affeef1e..7dcd4213d38a 100644
--- a/drivers/iio/adc/palmas_gpadc.c
+++ b/drivers/iio/adc/palmas_gpadc.c
@@ -659,8 +659,8 @@ static int palmas_adc_wakeup_configure(struct palmas_gpadc *adc)
 
 	adc_period = adc->auto_conversion_period;
 	for (i = 0; i < 16; ++i) {
-		if (((1000 * (1 << i)) / 32) < adc_period)
-			continue;
+		if (((1000 * (1 << i)) / 32) >= adc_period)
+			break;
 	}
 	if (i > 0)
 		i--;
-- 
2.30.2