Apply changes to usecount also the the master partition.
Otherwise we have no refcounting at all if an MTD has no partitions.
Cc: stable@xxxxxxxxxxxxxxx
Fixes: 46b5889cc2c5 ("mtd: implement proper partition handling")
Signed-off-by: Richard Weinberger <richard@xxxxxx>
---
drivers/mtd/mtdcore.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
index e9e163ae9d86..b07cbb0661fb 100644
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -993,6 +993,8 @@ int __get_mtd_device(struct mtd_info *mtd)
}
}
+ master->usecount++;
+
while (mtd->parent) {
mtd->usecount++;
mtd = mtd->parent;
@@ -1059,6 +1061,8 @@ void __put_mtd_device(struct mtd_info *mtd)
mtd = mtd->parent;
}
+ master->usecount--;
+
if (master->_put_device)
master->_put_device(master);
--
2.26.2
