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Subject[PATCH v2 6/8] [media] tvp7002: Check v4l2_of_parse_endpoint() return value
Date
The v4l2_of_parse_endpoint() function can fail so check the return value.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>

---

Changes in v2:
- Assign pdata to NULL in case v4l2_of_parse_endpoint() fails before kzalloc.
Suggested by Sakari Ailus.

drivers/media/i2c/tvp7002.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/media/i2c/tvp7002.c b/drivers/media/i2c/tvp7002.c
index 83c79fa5f61d..4df640c3aa40 100644
--- a/drivers/media/i2c/tvp7002.c
+++ b/drivers/media/i2c/tvp7002.c
@@ -894,7 +894,7 @@ static struct tvp7002_config *
tvp7002_get_pdata(struct i2c_client *client)
{
struct v4l2_of_endpoint bus_cfg;
- struct tvp7002_config *pdata;
+ struct tvp7002_config *pdata = NULL;
struct device_node *endpoint;
unsigned int flags;

@@ -905,11 +905,13 @@ tvp7002_get_pdata(struct i2c_client *client)
if (!endpoint)
return NULL;

+ if (v4l2_of_parse_endpoint(endpoint, &bus_cfg))
+ goto done;
+
pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
goto done;

- v4l2_of_parse_endpoint(endpoint, &bus_cfg);
flags = bus_cfg.bus.parallel.flags;

if (flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH)
--
2.4.3
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