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media: imx: Clear fwnode link struct for each endpoint iteration

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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: 621b08eabc ("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>
This commit is contained in:
Steve Longerbeam 2019-02-20 18:53:30 -05:00 committed by Mauro Carvalho Chehab
parent 904371f90b
commit 107927fa59
1 changed files with 9 additions and 6 deletions
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15
drivers/staging/media/imx/imx-media-of.c
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@ -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);