mtd: rawnand: nandsim: Consistent use of 'ns' instead of 'dev'

The nandsim object is called 'ns' almost everywhere, keep it that way
everywhere for consistency.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200525085851.17682-2-miquel.raynal@bootlin.com

drivers/mtd/nand/raw/nandsim.c

@@ -487,12 +487,12 @@ DEFINE_SHOW_ATTRIBUTE(nandsim);
 
 /**
  * nandsim_debugfs_create - initialize debugfs
- * @dev: nandsim device description object
+ * @ns: nandsim device description object
  *
  * This function creates all debugfs files for UBI device @ubi. Returns zero in
  * case of success and a negative error code in case of failure.
  */
-static int nandsim_debugfs_create(struct nandsim *dev)
+static int nandsim_debugfs_create(struct nandsim *ns)
 {
 	struct dentry *root = nsmtd->dbg.dfs_dir;
 	struct dentry *dent;
@@ -508,8 +508,8 @@ static int nandsim_debugfs_create(struct nandsim *dev)
 		return 0;
 	}
 
-	dent = debugfs_create_file("nandsim_wear_report", S_IRUSR,
-				   root, dev, &nandsim_fops);
+	dent = debugfs_create_file("nandsim_wear_report", S_IRUSR, root, ns,
+				   &nandsim_fops);
 	if (IS_ERR_OR_NULL(dent)) {
 		NS_ERR("cannot create \"nandsim_wear_report\" debugfs entry\n");
 		return -1;