[media] tvp514x: Check v4l2_of_parse_endpoint() return value

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>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

diff --git a/drivers/media/i2c/tvp514x.c b/drivers/media/i2c/tvp514x.c
index 7fa5f1e..7cdd948 100644 (file)
--- a/drivers/media/i2c/tvp514x.c
+++ b/drivers/media/i2c/tvp514x.c
@@ -1001,7 +1001,7 @@ static struct tvp514x_decoder tvp514x_dev = {
 static struct tvp514x_platform_data *
 tvp514x_get_pdata(struct i2c_client *client)
 {
-       struct tvp514x_platform_data *pdata;
+       struct tvp514x_platform_data *pdata = NULL;
        struct v4l2_of_endpoint bus_cfg;
        struct device_node *endpoint;
        unsigned int flags;
@@ -1013,11 +1013,13 @@ tvp514x_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)