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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: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
This commit is contained in:
Richard Weinberger 2016-09-21 11:43:56 +02:00 committed by Brian Norris
parent f6d7c1b559
commit 5e149073ba
1 changed files with 18 additions and 0 deletions
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18
drivers/mtd/mtdpart.c
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@ -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;