linux-kernel - [PATCH 4.14 48/77] media: davinci: fix a debug printk

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: <20180323094145.473686063@linuxfoundation.org>
Date:   Fri, 23 Mar 2018 10:54:22 +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,
        Mauro Carvalho Chehab <mchehab@...pensource.com>,
        "Lad, Prabhakar" <prabhakar.csengg@...il.com>,
        Sasha Levin <alexander.levin@...rosoft.com>
Subject: [PATCH 4.14 48/77] media: davinci: fix a debug printk

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

------------------

From: Mauro Carvalho Chehab <mchehab@...pensource.com>


[ Upstream commit 4f6c11044f512356cb63d3df0f3b38db79dc6736 ]

Two orthogonal changesets caused a breakage at a printk
inside davinci. Commit a2d17962c9ca
("[media] davinci: Switch from V4L2 OF to V4L2 fwnode")
made davinci to use struct fwnode_handle instead of
struct device_node. Commit 68d9c47b1679
("media: Convert to using %pOF instead of full_name")
changed the printk to not use ->full_name, but, instead,
to rely on %pOF.

With both patches applied, the Kernel will do the wrong
thing, as warned by smatch:
	drivers/media/platform/davinci/vpif_capture.c:1399 vpif_async_bound() error: '%pOF' expects argument of type 'struct device_node*', argument 5 has type 'void*'

So, change the logic to actually print the device name
that was obtained before the print logic.

Fixes: 68d9c47b1679 ("media: Convert to using %pOF instead of full_name")
Fixes: a2d17962c9ca ("[media] davinci: Switch from V4L2 OF to V4L2 fwnode")

Signed-off-by: Mauro Carvalho Chehab <mchehab@...pensource.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@...il.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@...pensource.com>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/media/platform/davinci/vpif_capture.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/media/platform/davinci/vpif_capture.c
+++ b/drivers/media/platform/davinci/vpif_capture.c
@@ -1397,9 +1397,9 @@ static int vpif_async_bound(struct v4l2_
 			vpif_obj.config->chan_config->inputs[i].subdev_name =
 				(char *)to_of_node(subdev->fwnode)->full_name;
 			vpif_dbg(2, debug,
-				 "%s: setting input %d subdev_name = %pOF\n",
+				 "%s: setting input %d subdev_name = %s\n",
 				 __func__, i,
-				 to_of_node(subdev->fwnode));
+				vpif_obj.config->chan_config->inputs[i].subdev_name);
 			return 0;
 		}
 	}