linux-kernel - [PATCH 1/2] eeprom: at25: Fix SPI device leak

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Message-Id: <1461143796-30669-1-git-send-email-broonie@kernel.org>
Date:	Wed, 20 Apr 2016 10:16:35 +0100
From:	Mark Brown <broonie@...nel.org>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
	Andrew Lunn <andrew@...n.ch>, linux-kernel@...r.kernel.org,
	Mark Brown <broonie@...nel.org>
Subject: [PATCH 1/2] eeprom: at25: Fix SPI device leak

The at25 driver is using spi_dev_get() apparently just to take a copy
of the SPI device used to instantiate it but never calls spi_dev_put()
to free it.  Since the device is guaranteed to exist between probe() and
remove() there should be no need for the driver to take an extra
reference to it so fix the leak by just using a straight assignment.

Signed-off-by: Mark Brown <broonie@...nel.org>
---
 drivers/misc/eeprom/at25.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/misc/eeprom/at25.c b/drivers/misc/eeprom/at25.c
index fa36a6e37084..a8ec227a7ff9 100644
--- a/drivers/misc/eeprom/at25.c
+++ b/drivers/misc/eeprom/at25.c
@@ -390,7 +390,7 @@ static int at25_probe(struct spi_device *spi)
 
 	mutex_init(&at25->lock);
 	at25->chip = chip;
-	at25->spi = spi_dev_get(spi);
+	at25->spi = spi;
 	spi_set_drvdata(spi, at25);
 	at25->addrlen = addrlen;
 
-- 
2.8.0.rc3