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Subject: media: imx: Clear fwnode link struct for each endpoint iteration Author: Steve Longerbeam slongerbeam@gmail.com Date: Wed Feb 20 18:53:30 2019 -0500

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 slongerbeam@gmail.com Cc: stable@vger.kernel.org Signed-off-by: Hans Verkuil hverkuil-cisco@xs4all.nl Signed-off-by: Mauro Carvalho Chehab mchehab+samsung@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 03446335ac03..a26bdeb1af34 100644 --- a/drivers/staging/media/imx/imx-media-of.c +++ b/drivers/staging/media/imx/imx-media-of.c @@ -145,15 +145,18 @@ 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);