4 files changed, 4 insertions, 4 deletions
diff --git a/drivers/mtd/core.c b/drivers/mtd/core.c
index 681dc9313c..8b8254c2d3 100644
--- a/drivers/mtd/core.c
+++ b/drivers/mtd/core.c
@@ -542,7 +542,7 @@ static int of_mtd_fixup(struct device_node *root, void *ctx)
 	return 0;
 }
 
-int add_mtd_device(struct mtd_info *mtd, char *devname, int device_id)
+int add_mtd_device(struct mtd_info *mtd, const char *devname, int device_id)
 {
 	struct mtddev_hook *hook;
 	int ret;
diff --git a/drivers/mtd/mtd.h b/drivers/mtd/mtd.h
index 414bd6cdb5..2a85265f98 100644
--- a/drivers/mtd/mtd.h
+++ b/drivers/mtd/mtd.h
@@ -25,7 +25,7 @@
  */
 struct mtddev_hook {
 	struct list_head hook;
-	int (*add_mtd_device)(struct mtd_info *mtd, char *devname, void **priv);
+	int (*add_mtd_device)(struct mtd_info *mtd, const char *devname, void **priv);
 	int (*del_mtd_device)(struct mtd_info *mtd, void **priv);
 	void *priv;
 };
diff --git a/drivers/mtd/mtdoob.c b/drivers/mtd/mtdoob.c
index 10d17e90d2..6160ddba08 100644
--- a/drivers/mtd/mtdoob.c
+++ b/drivers/mtd/mtdoob.c
@@ -69,7 +69,7 @@ static struct file_operations mtd_ops_oob = {
 	.lseek  = dev_lseek_default,
 };
 
-static int add_mtdoob_device(struct mtd_info *mtd, char *devname, void **priv)
+static int add_mtdoob_device(struct mtd_info *mtd, const char *devname, void **priv)
 {
 	struct mtdoob *mtdoob;
 
diff --git a/drivers/mtd/mtdraw.c b/drivers/mtd/mtdraw.c
index c25e4062ee..ae4bec2a4c 100644
--- a/drivers/mtd/mtdraw.c
+++ b/drivers/mtd/mtdraw.c
@@ -281,7 +281,7 @@ static const struct file_operations mtd_raw_fops = {
 	.lseek		= dev_lseek_default,
 };
 
-static int add_mtdraw_device(struct mtd_info *mtd, char *devname, void **priv)
+static int add_mtdraw_device(struct mtd_info *mtd, const char *devname, void **priv)
 {
 	struct mtdraw *mtdraw;