mtd: ubi: block: wire-up device parent

ubiblock devices were previously only identifyable by their name, but
not connected to their parent UBI volume device e.g. in sysfs.
Properly parent ubiblock device as descendant of a UBI volume device
to reflect device model hierachy.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Richard Weinberger <richard@nod.at>

diff --git a/drivers/mtd/ubi/block.c b/drivers/mtd/ubi/block.c
index f5d0362..6a9eb2c 100644 (file)
--- a/drivers/mtd/ubi/block.c
+++ b/drivers/mtd/ubi/block.c
@@ -419,7 +419,7 @@ int ubiblock_create(struct ubi_volume_info *vi)
        list_add_tail(&dev->list, &ubiblock_devices);
 
        /* Must be the last step: anyone can call file ops from now on */
-       ret = add_disk(dev->gd);
+       ret = device_add_disk(vi->dev, dev->gd, NULL);
        if (ret)
                goto out_remove_minor;
 

diff --git a/drivers/mtd/ubi/kapi.c b/drivers/mtd/ubi/kapi.c
index 0fce99f..5db653e 100644 (file)
--- a/drivers/mtd/ubi/kapi.c
+++ b/drivers/mtd/ubi/kapi.c
@@ -79,6 +79,7 @@ void ubi_do_get_volume_info(struct ubi_device *ubi, struct ubi_volume *vol,
        vi->name_len = vol->name_len;
        vi->name = vol->name;
        vi->cdev = vol->cdev.dev;
+       vi->dev = &vol->dev;
 }
 
 /**

diff --git a/include/linux/mtd/ubi.h b/include/linux/mtd/ubi.h
index 7d48ea3..a529347 100644 (file)
--- a/include/linux/mtd/ubi.h
+++ b/include/linux/mtd/ubi.h
@@ -110,6 +110,7 @@ struct ubi_volume_info {
        int name_len;
        const char *name;
        dev_t cdev;
+       struct device *dev;
 };
 
 /**