mtd: Avoid printing error messages on probe deferrals

There is no reason to complain about probe errors in case of deferrals.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Michael Walle <michael@walle.cc>
Link: https://lore.kernel.org/linux-mtd/20230307192506.439532-1-miquel.raynal@bootlin.com

Author: miquelraynal

drivers/mtd/mtdcore.c

@@ -536,12 +536,11 @@ static int mtd_nvmem_add(struct mtd_info *mtd)
 	mtd->nvmem = nvmem_register(&config);
 	if (IS_ERR(mtd->nvmem)) {
 		/* Just ignore if there is no NVMEM support in the kernel */
-		if (PTR_ERR(mtd->nvmem) == -EOPNOTSUPP) {
+		if (PTR_ERR(mtd->nvmem) == -EOPNOTSUPP)
 			mtd->nvmem = NULL;
-		} else {
-			dev_err(&mtd->dev, "Failed to register NVMEM device\n");
-			return PTR_ERR(mtd->nvmem);
-		}
+		else
+			return dev_err_probe(&mtd->dev, PTR_ERR(mtd->nvmem),
+					     "Failed to register NVMEM device\n");
 	}
 
 	return 0;