diff mbox series

net: mv643xx_eth: disable clk on error path in mv643xx_eth_shared_probe()

Message ID 1550265654-6626-1-git-send-email-khoroshilov@ispras.ru
State Accepted
Delegated to: David Miller
Headers show
Series net: mv643xx_eth: disable clk on error path in mv643xx_eth_shared_probe() | expand

Commit Message

Alexey Khoroshilov Feb. 15, 2019, 9:20 p.m. UTC
If mv643xx_eth_shared_of_probe() fails, mv643xx_eth_shared_probe()
leaves clk undisabled.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
---
 drivers/net/ethernet/marvell/mv643xx_eth.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

Comments

Sergei Shtylyov Feb. 16, 2019, 8:17 a.m. UTC | #1
On 16.02.2019 0:20, Alexey Khoroshilov wrote:

> If mv643xx_eth_shared_of_probe() fails, mv643xx_eth_shared_probe()
> leaves clk undisabled.

    Enabled, that is? :-)

> Found by Linux Driver Verification project (linuxtesting.org).
> 
> Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
[...]

MBR, Sergei
David Miller Feb. 17, 2019, 11:44 p.m. UTC | #2
From: Alexey Khoroshilov <khoroshilov@ispras.ru>
Date: Sat, 16 Feb 2019 00:20:54 +0300

> If mv643xx_eth_shared_of_probe() fails, mv643xx_eth_shared_probe()
> leaves clk undisabled.
> 
> Found by Linux Driver Verification project (linuxtesting.org).
> 
> Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>

Applied with undisabled changed to enabled.
diff mbox series

Patch

diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c
index 2f427271a793..292a668ce88e 100644
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -2879,7 +2879,7 @@  static int mv643xx_eth_shared_probe(struct platform_device *pdev)
 
 	ret = mv643xx_eth_shared_of_probe(pdev);
 	if (ret)
-		return ret;
+		goto err_put_clk;
 	pd = dev_get_platdata(&pdev->dev);
 
 	msp->tx_csum_limit = (pd != NULL && pd->tx_csum_limit) ?
@@ -2887,6 +2887,11 @@  static int mv643xx_eth_shared_probe(struct platform_device *pdev)
 	infer_hw_params(msp);
 
 	return 0;
+
+err_put_clk:
+	if (!IS_ERR(msp->clk))
+		clk_disable_unprepare(msp->clk);
+	return ret;
 }
 
 static int mv643xx_eth_shared_remove(struct platform_device *pdev)