The firmware device node was added to struct device in ce793486e
"driver core / ACPI: Represent ACPI companions using fwnode_handle" do
not access it on older kernel versions.
Signed-off-by: Hauke Mehrtens <hauke@xxxxxxxxxx>
---
.../media/0007-no-fwnode/v4l2.patch | 26 ++++++++++++++++++++++
1 file changed, 26 insertions(+)
create mode 100644 patches/collateral-evolutions/media/0007-no-fwnode/v4l2.patch
diff --git a/patches/collateral-evolutions/media/0007-no-fwnode/v4l2.patch b/patches/collateral-evolutions/media/0007-no-fwnode/v4l2.patch
new file mode 100644
index 0000000..1535749
--- /dev/null
+++ b/patches/collateral-evolutions/media/0007-no-fwnode/v4l2.patch
@@ -0,0 +1,26 @@
+--- a/drivers/media/v4l2-core/v4l2-device.c
++++ b/drivers/media/v4l2-core/v4l2-device.c
+@@ -131,7 +131,11 @@ void v4l2_device_unregister(struct v4l2_
+ * re-created by just probing the V4L2 driver.
+ */
+ if (client &&
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,1,0)
+ !client->dev.of_node && !client->dev.fwnode)
++#else
++ !client->dev.of_node)
++#endif
+ i2c_unregister_device(client);
+ continue;
+ }
+@@ -140,7 +144,11 @@ void v4l2_device_unregister(struct v4l2_
+ if (sd->flags & V4L2_SUBDEV_FL_IS_SPI) {
+ struct spi_device *spi = v4l2_get_subdevdata(sd);
+
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,1,0)
+ if (spi && !spi->dev.of_node && !spi->dev.fwnode)
++#else
++ if (spi && !spi->dev.of_node)
++#endif
+ spi_unregister_device(spi);
+ continue;
+ }
--
2.6.2
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