[media] lm3560: prevent memory leak in case of pdata absence

If we have no pdata defined and driver fails to register we leak memory.
Converting to devm_kzalloc prevents this to happen.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/i2c/lm3560.c

@@ -416,8 +416,7 @@ static int lm3560_probe(struct i2c_client *client,
 
 	/* if there is no platform data, use chip default value */
 	if (pdata == NULL) {
-		pdata =
-		    kzalloc(sizeof(struct lm3560_platform_data), GFP_KERNEL);
+		pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL);
 		if (pdata == NULL)
 			return -ENODEV;
 		pdata->peak = LM3560_PEAK_3600mA;