From: Pan Bian <bianpan2016@163.com>
To: Artem Bityutskiy <dedekind1@gmail.com>,
Richard Weinberger <richard@nod.at>,
David Woodhouse <dwmw2@infradead.org>,
Brian Norris <computersforpeace@gmail.com>,
Boris Brezillon <boris.brezillon@bootlin.com>,
Marek Vasut <marek.vasut@gmail.com>
Cc: linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org,
Pan Bian <bianpan2016@163.com>
Subject: [PATCH] ubi: do not drop UBI device reference before using
Date: Wed, 28 Nov 2018 11:20:03 +0800 [thread overview]
Message-ID: <1543375203-97876-1-git-send-email-bianpan2016@163.com> (raw)
The UBI device reference is dropped but then the device is used as a
parameter of ubi_err. The bug is introduced in changing ubi_err's
behavior. The old ubi_err does not require a UBI device as its first
parameter, but the new one does.
Fixes: 32608703310 ("UBI: Extend UBI layer debug/messaging capabilities")
Signed-off-by: Pan Bian <bianpan2016@163.com>
---
drivers/mtd/ubi/kapi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mtd/ubi/kapi.c b/drivers/mtd/ubi/kapi.c
index e9e9ecb..0b8f0c4 100644
--- a/drivers/mtd/ubi/kapi.c
+++ b/drivers/mtd/ubi/kapi.c
@@ -227,9 +227,9 @@ struct ubi_volume_desc *ubi_open_volume(int ubi_num, int vol_id, int mode)
out_free:
kfree(desc);
out_put_ubi:
- ubi_put_device(ubi);
ubi_err(ubi, "cannot open device %d, volume %d, error %d",
ubi_num, vol_id, err);
+ ubi_put_device(ubi);
return ERR_PTR(err);
}
EXPORT_SYMBOL_GPL(ubi_open_volume);
--
2.7.4
next reply other threads:[~2018-11-28 3:21 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-28 3:20 Pan Bian [this message]
2018-11-28 8:06 ` [PATCH] ubi: do not drop UBI device reference before using Boris Brezillon
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