mtd: rawnand: denali: fix probe function error path

An error after nand_scan_tail() should trigger a nand_cleanup().
The helper mtd_device_register() returns an error code that should
be checked and nand_cleanup() called accordingly.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>

drivers/mtd/nand/raw/denali.c

@@ -1384,10 +1384,12 @@ int denali_init(struct denali_nand_info *denali)
 	ret = mtd_device_register(mtd, NULL, 0);
 	if (ret) {
 		dev_err(denali->dev, "Failed to register MTD: %d\n", ret);
-		goto free_buf;
+		goto cleanup_nand;
 	}
 	return 0;
 
+cleanup_nand:
+	nand_cleanup(chip);
 free_buf:
 	kfree(denali->buf);
 disable_irq: