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Subject[PATCH v1 2/2] mtd: Add hooks to call get and put on mtd devices.
Date
From: Jim Baxter <jim_baxter@mentor.com>

Add hooks to mtdpart to call _get_device and _put_device,
this allows the mtd devices to perform internal
reference counting if required.

Signed-off-by: Jim Baxter <jim_baxter@mentor.com>
Signed-off-by: Sandeep Jain <Sandeep_Jain@mentor.com>
---
drivers/mtd/mtdpart.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)

diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index 1f13e32..adbb1fd 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -338,6 +338,20 @@ static const struct mtd_ooblayout_ops part_ooblayout_ops = {
.free = part_ooblayout_free,
};

+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 inline void free_partition(struct mtd_part *p)
{
kfree(p->mtd.name);
@@ -463,6 +477,10 @@ 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;
--
1.7.9.5
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