[PATCH AUTOSEL 4.19 061/205] media: ov772x: Disable clk on error path

[Sasha Levin]

From: Alexey Khoroshilov <khoroshilov@xxxxxxxxx>

[ Upstream commit 1d18c2cd9d38ad639b2e00546b9ee638f2cef4b0 ]

If ov772x_power_on() is unable to get GPIO rstb,
the clock is left undisabled.

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

Signed-off-by: Alexey Khoroshilov <khoroshilov@xxxxxxxxx>
Acked-by: Jacopo Mondi <jacopo+renesas@xxxxxxxxxx>
Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/media/i2c/ov772x.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/i2c/ov772x.c b/drivers/media/i2c/ov772x.c
index 7158c31d8403b..4eae5f2f7d318 100644
--- a/drivers/media/i2c/ov772x.c
+++ b/drivers/media/i2c/ov772x.c
@@ -896,6 +896,7 @@ static int ov772x_power_on(struct ov772x_priv *priv)
 					     GPIOD_OUT_LOW);
 	if (IS_ERR(priv->rstb_gpio)) {
 		dev_info(&client->dev, "Unable to get GPIO \"reset\"");
+		clk_disable_unprepare(priv->clk);
 		return PTR_ERR(priv->rstb_gpio);
 	}
 
-- 
2.20.1