于 2013年01月31日 05:25, Hans Verkuil 写道:
> From: Hans Verkuil <hans.verk...@cisco.com>
>
> Set the correct parent for v4l2_device_register. Also remove an unnecessary
> forward reference and fix two weird looking log messages.
>
> Signed-off-by: Hans Verkuil <hans.verk...@cisco.com>
> ---
>  drivers/media/usb/tlg2300/pd-main.c |    9 ++++-----
>  1 file changed, 4 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/media/usb/tlg2300/pd-main.c 
> b/drivers/media/usb/tlg2300/pd-main.c
> index 7b1f6eb..c4eb57a 100644
> --- a/drivers/media/usb/tlg2300/pd-main.c
> +++ b/drivers/media/usb/tlg2300/pd-main.c
> @@ -55,7 +55,6 @@ MODULE_PARM_DESC(debug_mode, "0 = disable, 1 = enable, 2 = 
> verbose");
>  
>  #define TLG2300_FIRMWARE "tlg2300_firmware.bin"
>  static const char *firmware_name = TLG2300_FIRMWARE;
> -static struct usb_driver poseidon_driver;
>  static LIST_HEAD(pd_device_list);
>  
>  /*
> @@ -316,7 +315,7 @@ static int poseidon_suspend(struct usb_interface *intf, 
> pm_message_t msg)
>               if (get_pm_count(pd) <= 0 && !in_hibernation(pd)) {
>                       pd->msg.event = PM_EVENT_AUTO_SUSPEND;
>                       pd->pm_resume = NULL; /*  a good guard */
> -                     printk(KERN_DEBUG "\n\t+ TLG2300 auto suspend +\n\n");
> +                     printk(KERN_DEBUG "TLG2300 auto suspend\n");
>               }
>               return 0;
>       }
> @@ -331,7 +330,7 @@ static int poseidon_resume(struct usb_interface *intf)
>  
>       if (!pd)
>               return 0;
> -     printk(KERN_DEBUG "\n\t ++ TLG2300 resume ++\n\n");
> +     printk(KERN_DEBUG "TLG2300 resume\n");
>  
>       if (!is_working(pd)) {
>               if (PM_EVENT_AUTO_SUSPEND == pd->msg.event)
> @@ -439,7 +438,7 @@ static int poseidon_probe(struct usb_interface *interface,
>               /* register v4l2 device */
>               snprintf(pd->v4l2_dev.name, sizeof(pd->v4l2_dev.name), "%s %s",
>                       dev->driver->name, dev_name(dev));
I think this line could be removed in this patch too. The
v4l2_device_register() will assign the v4l2_dev->name if it's empty.

thanks
Huang Shijie
> -             ret = v4l2_device_register(NULL, &pd->v4l2_dev);
> +             ret = v4l2_device_register(&interface->dev, &pd->v4l2_dev);
>  
>               /* register devices in directory /dev */
>               ret = pd_video_init(pd);
> @@ -530,7 +529,7 @@ module_init(poseidon_init);
>  module_exit(poseidon_exit);
>  
>  MODULE_AUTHOR("Telegent Systems");
> -MODULE_DESCRIPTION("For tlg2300-based USB device ");
> +MODULE_DESCRIPTION("For tlg2300-based USB device");
>  MODULE_LICENSE("GPL");
>  MODULE_VERSION("0.0.2");
>  MODULE_FIRMWARE(TLG2300_FIRMWARE);

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