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-rw-r--r--drivers/mtd/mtdpart.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index 06d5b9d8853..02ce38fb1fc 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -356,6 +356,11 @@ static struct mtd_part *add_one_partition(struct mtd_info *master,
slave->mtd.owner = master->owner;
slave->mtd.backing_dev_info = master->backing_dev_info;
+ /* NOTE: we don't arrange MTDs as a tree; it'd be error-prone
+ * to have the same data be in two different partitions.
+ */
+ slave->mtd.dev.parent = master->dev.parent;
+
slave->mtd.read = part_read;
slave->mtd.write = part_write;
@@ -508,7 +513,9 @@ out_register:
* This function, given a master MTD object and a partition table, creates
* and registers slave MTD objects which are bound to the master according to
* the partition definitions.
- * (Q: should we register the master MTD object as well?)
+ *
+ * We don't register the master, or expect the caller to have done so,
+ * for reasons of data integrity.
*/
int add_mtd_partitions(struct mtd_info *master,