media: smiapp: unlock on error in smiapp_start_streaming()

We added two new error paths to smiapp_start_streaming(), but we can't
return directly without dropping the "sensor->mutex" lock.

Fixes: f8c4352c1b ("media: smiapp: Move binning configuration to streaming start")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/i2c/smiapp/smiapp-core.c

@@ -1362,13 +1362,13 @@ static int smiapp_start_streaming(struct smiapp_sensor *sensor)
 		rval = smiapp_write(
 			sensor, SMIAPP_REG_U8_BINNING_TYPE, binning_type);
 		if (rval < 0)
-			return rval;
+			goto out;
 
 		binning_mode = 1;
 	}
 	rval = smiapp_write(sensor, SMIAPP_REG_U8_BINNING_MODE, binning_mode);
 	if (rval < 0)
-		return rval;
+		goto out;
 
 	/* Set up PLL */
 	rval = smiapp_pll_configure(sensor);