diff options
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h | 3 | ||||
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-hdw.c | 18 |
2 files changed, 20 insertions, 1 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h b/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h index d96f0f51076..09798403e9f 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h +++ b/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h @@ -38,6 +38,7 @@ #include <linux/mutex.h> #include "pvrusb2-hdw.h" #include "pvrusb2-io.h" +#include <media/v4l2-device.h> #include <media/cx2341x.h> #include "pvrusb2-devattr.h" @@ -179,6 +180,8 @@ struct pvr2_hdw { struct usb_device *usb_dev; struct usb_interface *usb_intf; + /* Our handle into the v4l2 sub-device architecture */ + struct v4l2_device v4l2_dev; /* Device description, anything that must adjust behavior based on device specific info will use information held here. */ const struct pvr2_device_desc *hdw_desc; diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c index 9441bcc37bc..b66ac1c49db 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c +++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c @@ -2192,11 +2192,14 @@ struct pvr2_hdw *pvr2_hdw_create(struct usb_interface *intf, struct pvr2_hdw *hdw = NULL; int valid_std_mask; struct pvr2_ctrl *cptr; + struct usb_device *usb_dev; const struct pvr2_device_desc *hdw_desc; __u8 ifnum; struct v4l2_queryctrl qctrl; struct pvr2_ctl_info *ciptr; + usb_dev = interface_to_usbdev(intf); + hdw_desc = (const struct pvr2_device_desc *)(devid->driver_info); if (hdw_desc == NULL) { @@ -2381,6 +2384,11 @@ struct pvr2_hdw *pvr2_hdw_create(struct usb_interface *intf, hdw->ctl_read_urb = usb_alloc_urb(0,GFP_KERNEL); if (!hdw->ctl_read_urb) goto fail; + if (v4l2_device_register(&usb_dev->dev, &hdw->v4l2_dev) != 0) { + pvr2_trace(PVR2_TRACE_ERROR_LEGS, + "Error registering with v4l core, giving up"); + goto fail; + } mutex_lock(&pvr2_unit_mtx); do { for (idx = 0; idx < PVR_NUM; idx++) { if (unit_pointers[idx]) continue; @@ -2412,7 +2420,7 @@ struct pvr2_hdw *pvr2_hdw_create(struct usb_interface *intf, hdw->flag_ok = !0; hdw->usb_intf = intf; - hdw->usb_dev = interface_to_usbdev(intf); + hdw->usb_dev = usb_dev; usb_make_path(hdw->usb_dev, hdw->bus_info, sizeof(hdw->bus_info)); @@ -2472,6 +2480,13 @@ static void pvr2_hdw_remove_usb_stuff(struct pvr2_hdw *hdw) hdw->ctl_write_buffer = NULL; } hdw->flag_disconnected = !0; + /* If we don't do this, then there will be a dangling struct device + reference to our disappearing device persisting inside the V4L + core... */ + if (hdw->v4l2_dev.dev) { + dev_set_drvdata(hdw->v4l2_dev.dev, NULL); + hdw->v4l2_dev.dev = NULL; + } hdw->usb_dev = NULL; hdw->usb_intf = NULL; pvr2_hdw_render_useless(hdw); @@ -2504,6 +2519,7 @@ void pvr2_hdw_destroy(struct pvr2_hdw *hdw) } pvr2_i2c_core_done(hdw); pvr2_i2c_track_done(hdw); + v4l2_device_unregister(&hdw->v4l2_dev); pvr2_hdw_remove_usb_stuff(hdw); mutex_lock(&pvr2_unit_mtx); do { if ((hdw->unit_number >= 0) && |