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[139.181.7.34]) by smtp.gmail.com with ESMTPSA id o5sm26432048wrw.46.2019.01.19.13.46.11 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 19 Jan 2019 13:46:13 -0800 (PST) From: Steve Longerbeam To: linux-media@vger.kernel.org Cc: Steve Longerbeam , stable@vger.kernel.org, Philipp Zabel , Mauro Carvalho Chehab , Greg Kroah-Hartman , devel@driverdev.osuosl.org (open list:STAGING SUBSYSTEM), linux-kernel@vger.kernel.org (open list) Subject: [PATCH 2/4] media: imx: Clear fwnode link struct for each endpoint iteration Date: Sat, 19 Jan 2019 13:45:58 -0800 Message-Id: <20190119214600.30897-3-slongerbeam@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190119214600.30897-1-slongerbeam@gmail.com> References: <20190119214600.30897-1-slongerbeam@gmail.com> Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org In imx_media_create_csi_of_links(), the 'struct v4l2_fwnode_link' must be cleared for each endpoint iteration, otherwise if the remote port has no "reg" property, link.remote_port will not be reset to zero. This was discovered on the i.MX53 SMD board, since the OV5642 connects directly to ipu1_csi0 and has a single source port with no "reg" property. Fixes: 621b08eabcddb ("media: staging/imx: remove static media link arrays") Signed-off-by: Steve Longerbeam Cc: stable@vger.kernel.org --- drivers/staging/media/imx/imx-media-of.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/drivers/staging/media/imx/imx-media-of.c b/drivers/staging/media/imx/imx-media-of.c index a01327f6e045..2da81a5af274 100644 --- a/drivers/staging/media/imx/imx-media-of.c +++ b/drivers/staging/media/imx/imx-media-of.c @@ -143,15 +143,18 @@ int imx_media_create_csi_of_links(struct imx_media_dev *imxmd, struct v4l2_subdev *csi) { struct device_node *csi_np = csi->dev->of_node; - struct fwnode_handle *fwnode, *csi_ep; - struct v4l2_fwnode_link link; struct device_node *ep; - int ret; - - link.local_node = of_fwnode_handle(csi_np); - link.local_port = CSI_SINK_PAD; for_each_child_of_node(csi_np, ep) { + struct fwnode_handle *fwnode, *csi_ep; + struct v4l2_fwnode_link link; + int ret; + + memset(&link, 0, sizeof(link)); + + link.local_node = of_fwnode_handle(csi_np); + link.local_port = CSI_SINK_PAD; + csi_ep = of_fwnode_handle(ep); fwnode = fwnode_graph_get_remote_endpoint(csi_ep); -- 2.17.1