From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Sat, 20 Feb 2016 20:27:48 +0000 (+0200)
Subject: mtd: onenand: fix deadlock in onenand_block_markbad
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9bd1e146ee4d62344001ea3a879c34cbb79787d9;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

mtd: onenand: fix deadlock in onenand_block_markbad

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@iki.fi>
Acked-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Willy Tarreau <w@1wt.eu>
---

diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index b3f41f20062..0f13fd4748e 100644
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -2610,6 +2610,7 @@ 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);
@@ -2621,7 +2622,7 @@ 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;
 }