mtd: nand: gpmi: Check for scan_bbt() error

In case of scan_bbt() failure, we should better propagate it.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Acked-by: NHuang Shijie <shijie.huang@intel.com>
Signed-off-by: NBrian Norris <computersforpeace@gmail.com>

drivers/mtd/nand/gpmi-nand/gpmi-nand.c

@@ -1950,7 +1950,9 @@ static int gpmi_nand_init(struct gpmi_nand_data *this)
 	ret = nand_boot_init(this);
 	if (ret)
 		goto err_out;
-	chip->scan_bbt(mtd);
+	ret = chip->scan_bbt(mtd);
+	if (ret)
+		goto err_out;
 
 	ppdata.of_node = this->pdev->dev.of_node;
 	ret = mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0);