linux-kernel - [PATCH 5.9 471/757] mtd: hyperbus: hbmc-am654: Fix direct mapping setup flash access

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20201027135512.605519019@linuxfoundation.org>
Date:   Tue, 27 Oct 2020 14:52:01 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Vignesh Raghavendra <vigneshr@...com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.9 471/757] mtd: hyperbus: hbmc-am654: Fix direct mapping setup flash access

From: Vignesh Raghavendra <vigneshr@...com>

[ Upstream commit aca31ce96814c84d1a41aaa109c15abe61005af7 ]

Setting up of direct mapping should be done with flash node's IO
address space and not with controller's IO region.

Fixes: b6fe8bc67d2d3 ("mtd: hyperbus: move direct mapping setup to AM654 HBMC driver")
Signed-off-by: Vignesh Raghavendra <vigneshr@...com>
Link: https://lore.kernel.org/r/20200924081214.16934-3-vigneshr@ti.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/mtd/hyperbus/hbmc-am654.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/hyperbus/hbmc-am654.c b/drivers/mtd/hyperbus/hbmc-am654.c
index e0e33f6bf513b..1e70ecfffa39f 100644
--- a/drivers/mtd/hyperbus/hbmc-am654.c
+++ b/drivers/mtd/hyperbus/hbmc-am654.c
@@ -70,7 +70,8 @@ static int am654_hbmc_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, priv);
 
-	ret = of_address_to_resource(np, 0, &res);
+	priv->hbdev.np = of_get_next_child(np, NULL);
+	ret = of_address_to_resource(priv->hbdev.np, 0, &res);
 	if (ret)
 		return ret;
 
@@ -103,7 +104,6 @@ static int am654_hbmc_probe(struct platform_device *pdev)
 	priv->ctlr.dev = dev;
 	priv->ctlr.ops = &am654_hbmc_ops;
 	priv->hbdev.ctlr = &priv->ctlr;
-	priv->hbdev.np = of_get_next_child(dev->of_node, NULL);
 	ret = hyperbus_register_device(&priv->hbdev);
 	if (ret) {
 		dev_err(dev, "failed to register controller\n");
-- 
2.25.1