[PATCH] media: marvell-ccic: set error code in probe

From: Evgeny Novikov <novikov@ispras.ru>
To: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Evgeny Novikov <novikov@ispras.ru>,
	Jacopo Mondi <jacopo+renesas@jmondi.org>,
	Ezequiel Garcia <ezequiel@collabora.com>,
	Sakari Ailus <sakari.ailus@linux.intel.com>,
	Hans Verkuil <hverkuil-cisco@xs4all.nl>,
	Lubomir Rintel <lkundrak@v3.sk>,
	Vaibhav Gupta <vaibhavgupta40@gmail.com>,
	Leon Romanovsky <leon@kernel.org>,
	Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>,
	linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
	ldv-project@linuxtesting.org
Subject: [PATCH] media: marvell-ccic: set error code in probe
Date: Wed, 26 May 2021 17:35:06 +0300	[thread overview]
Message-ID: <20210526143506.6945-1-novikov@ispras.ru> (raw)

When i2c_new_client_device() fails, cafe_pci_probe() cleans up all
resources and returns 0. The patch sets the error code on the
corresponding path.

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

Signed-off-by: Evgeny Novikov <novikov@ispras.ru>
---
 drivers/media/platform/marvell-ccic/cafe-driver.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/media/platform/marvell-ccic/cafe-driver.c b/drivers/media/platform/marvell-ccic/cafe-driver.c
index baac86f3d153..9aa374fa8b36 100644
--- a/drivers/media/platform/marvell-ccic/cafe-driver.c
+++ b/drivers/media/platform/marvell-ccic/cafe-driver.c
@@ -486,6 +486,7 @@ static int cafe_pci_probe(struct pci_dev *pdev,
 	struct cafe_camera *cam;
 	struct mcam_camera *mcam;
 	struct v4l2_async_subdev *asd;
+	struct i2c_client *i2c_dev;
 
 	/*
 	 * Start putting together one of our big camera structures.
@@ -561,11 +562,16 @@ static int cafe_pci_probe(struct pci_dev *pdev,
 	clkdev_create(mcam->mclk, "xclk", "%d-%04x",
 		i2c_adapter_id(cam->i2c_adapter), ov7670_info.addr);
 
-	if (!IS_ERR(i2c_new_client_device(cam->i2c_adapter, &ov7670_info))) {
-		cam->registered = 1;
-		return 0;
+	i2c_dev = i2c_new_client_device(cam->i2c_adapter, &ov7670_info);
+	if (IS_ERR(i2c_dev)) {
+		ret = PTR_ERR(i2c_dev);
+		goto out_mccic_shutdown;
 	}
 
+	cam->registered = 1;
+	return 0;
+
+out_mccic_shutdown:
 	mccic_shutdown(mcam);
 out_smbus_shutdown:
 	cafe_smbus_shutdown(cam);
-- 
2.26.2

