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Commit 5e149073 authored by Richard Weinberger's avatar Richard Weinberger Committed by Brian Norris
Browse files

mtdpart: Propagate _get/put_device() 



If the master device has callbacks for _get/put_device()
and this MTD has slaves a get_mtd_device() call on paritions
will never issue the registered callbacks.
Fix this by propagating _get/put_device() down.

Reviewed-by: default avatarBoris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: default avatarRichard Weinberger <richard@nod.at>
Signed-off-by: default avatarBrian Norris <computersforpeace@gmail.com>
parent f6d7c1b5

drivers/mtd/mtdpart.c

+18 −0
Original line number Diff line number Diff line
@@ -317,6 +317,18 @@ static int part_block_markbad(struct mtd_info *mtd, loff_t ofs) 
	return res;

}



static int part_get_device(struct mtd_info *mtd)

{

	struct mtd_part *part = mtd_to_part(mtd);

	return part->master->_get_device(part->master);

}



static void part_put_device(struct mtd_info *mtd)

{

	struct mtd_part *part = mtd_to_part(mtd);

	part->master->_put_device(part->master);

}



static int part_ooblayout_ecc(struct mtd_info *mtd, int section,

			      struct mtd_oob_region *oobregion)

{
@@ -463,6 +475,12 @@ static struct mtd_part *allocate_partition(struct mtd_info *master, 
		slave->mtd._block_isbad = part_block_isbad;

	if (master->_block_markbad)

		slave->mtd._block_markbad = part_block_markbad;



	if (master->_get_device)

		slave->mtd._get_device = part_get_device;

	if (master->_put_device)

		slave->mtd._put_device = part_put_device;



	slave->mtd._erase = part_erase;

	slave->master = master;

	slave->offset = part->offset;