On Thu, Feb 16, 2017 at 10:44:16AM -0800, Steve Longerbeam wrote: > On 02/16/2017 04:40 AM, Russell King - ARM Linux wrote: > >[ 8.012191] imx_media_common: module is from the staging directory, the quality is unknown, you have been warned. > >[ 8.018175] imx_media: module is from the staging directory, the quality is unknown, you have been warned. > >[ 8.748345] imx-media: Registered subdev ipu1_csi0_mux > >[ 8.753451] imx-media: Registered subdev ipu2_csi1_mux > >[ 9.055196] imx219 0-0010: detected IMX219 sensor > >[ 9.090733] imx6_mipi_csi2: module is from the staging directory, the quality is unknown, you have been warned. > >[ 9.092247] imx-media: Registered subdev imx219 0-0010 > >[ 9.334338] imx-media: Registered subdev imx6-mipi-csi2 > >[ 9.372452] imx_media_capture: module is from the staging directory, the quality is unknown, you have been warned. > >[ 9.378163] imx_media_capture: module is from the staging directory, the quality is unknown, you have been warned. > >[ 9.390033] imx_media_csi: module is from the staging directory, the quality is unknown, you have been warned. > >[ 9.394362] imx-media: Received unknown subdev ipu1_csi0 > > The root problem is here. I don't know why the CSI entities are not > being recognized. Can you share the changes you made? No, it's not the root problem that's causing the BUG/etc, but it is _a_ problem. Nevertheless, it's something I fixed - disconnecting the of_node from the struct device needed one other change in the imx-media code that was missing at this time. However, that's no excuse what so ever for the BUG_ON() and lack of error cleanup (causing use-after-free, which is just another way of saying "data corruption waiting to happen") that I identified. -- RMK's Patch system: http://www.armlinux.org.uk/developer/patches/ FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up according to speedtest.net.
