[PATCH 3.19.y-ckt 043/170] mtd: onenand: fix deadlock in onenand_block_markbad

From: Kamal Mostafa
Date: Fri Apr 01 2016 - 21:33:10 EST


3.19.8-ckt18 -stable review patch. If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Aaro Koskinen <aaro.koskinen@xxxxxx>

commit 5e64c29e98bfbba1b527b0a164f9493f3db9e8cb upstream.

Commit 5942ddbc500d ("mtd: introduce mtd_block_markbad interface")
incorrectly changed onenand_block_markbad() to call mtd_block_markbad
instead of onenand_chip's block_markbad function. As a result the function
will now recurse and deadlock. Fix by reverting the change.

Fixes: 5942ddbc500d ("mtd: introduce mtd_block_markbad interface")
Signed-off-by: Aaro Koskinen <aaro.koskinen@xxxxxx>
Acked-by: Artem Bityutskiy <artem.bityutskiy@xxxxxxxxxxxxxxx>
Signed-off-by: Brian Norris <computersforpeace@xxxxxxxxx>
Signed-off-by: Kamal Mostafa <kamal@xxxxxxxxxxxxx>
---
drivers/mtd/onenand/onenand_base.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index 635ee00..c3f327e 100644
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -2605,6 +2605,7 @@ static int onenand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
*/
static int onenand_block_markbad(struct mtd_info *mtd, loff_t ofs)
{
+ struct onenand_chip *this = mtd->priv;
int ret;

ret = onenand_block_isbad(mtd, ofs);
@@ -2616,7 +2617,7 @@ static int onenand_block_markbad(struct mtd_info *mtd, loff_t ofs)
}

onenand_get_device(mtd, FL_WRITING);
- ret = mtd_block_markbad(mtd, ofs);
+ ret = this->block_markbad(mtd, ofs);
onenand_release_device(mtd);
return ret;
}
--
2.7.4