mtd: socrates_nand: Use dev_err instead of printk

dev_err is preferred to printk.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
diff --git a/drivers/mtd/nand/socrates_nand.c b/drivers/mtd/nand/socrates_nand.c
index e77da7e..9a9fa49 100644
--- a/drivers/mtd/nand/socrates_nand.c
+++ b/drivers/mtd/nand/socrates_nand.c
@@ -155,7 +155,7 @@
 
 	host->io_base = of_iomap(ofdev->dev.of_node, 0);
 	if (host->io_base == NULL) {
-		printk(KERN_ERR "socrates_nand: ioremap failed\n");
+		dev_err(&ofdev->dev, "ioremap failed\n");
 		return -EIO;
 	}