linux-kernel - [PATCH v2] mrf24j40: Fix en error handling path in 'mrf24j40

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Message-Id: <20170708084013.18620-1-christophe.jaillet@wanadoo.fr>
Date:   Sat,  8 Jul 2017 10:40:13 +0200
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     alan@...nal11.us, alex.aring@...il.com, stefan@....samsung.com
Cc:     linux-wpan@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>
Subject: [PATCH v2] mrf24j40: Fix en error handling path in 'mrf24j40_probe()'

If this check fails, we must release some resources as done everywhere
else in this function before returning an error code.

Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
V2: initialization of ret in this erro path ws missing. Stupid me!
---
 drivers/net/ieee802154/mrf24j40.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ieee802154/mrf24j40.c b/drivers/net/ieee802154/mrf24j40.c
index 7d334963dc08..da8683782ffc 100644
--- a/drivers/net/ieee802154/mrf24j40.c
+++ b/drivers/net/ieee802154/mrf24j40.c
@@ -1330,7 +1330,8 @@ static int mrf24j40_probe(struct spi_device *spi)
 	if (spi->max_speed_hz > MAX_SPI_SPEED_HZ) {
 		dev_warn(&spi->dev, "spi clock above possible maximum: %d",
 			 MAX_SPI_SPEED_HZ);
-		return -EINVAL;
+		ret = -EINVAL;
+		goto err_register_device;
 	}
 
 	ret = mrf24j40_hw_init(devrec);
-- 
2.11.0