Re: [PATCH 6/7] em28xx: print a message at disconnect

["Frank Schäfer" <fschaefer.oss@googlemail.com>]

On 13.01.2014 00:00, Mauro Carvalho Chehab wrote:
> That helps to identify if something fails and explain why em28xx
> struct is not freed (if it ever happens).
>
> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
> ---
>   drivers/media/usb/em28xx/em28xx-audio.c | 2 ++
>   drivers/media/usb/em28xx/em28xx-dvb.c   | 2 ++
>   drivers/media/usb/em28xx/em28xx-input.c | 2 ++
>   drivers/media/usb/em28xx/em28xx-video.c | 2 ++
>   4 files changed, 8 insertions(+)
>
> diff --git a/drivers/media/usb/em28xx/em28xx-audio.c b/drivers/media/usb/em28xx/em28xx-audio.c
> index 5e16fcf18cac..0ec4742c3ab0 100644
> --- a/drivers/media/usb/em28xx/em28xx-audio.c
> +++ b/drivers/media/usb/em28xx/em28xx-audio.c
> @@ -962,6 +962,8 @@ static int em28xx_audio_fini(struct em28xx *dev)
>   		return 0;
>   	}
>   
> +	em28xx_info("Disconnecting audio extension");
> +
>   	snd_card_disconnect(dev->adev.sndcard);
>   	em28xx_audio_free_urb(dev);
>   
> diff --git a/drivers/media/usb/em28xx/em28xx-dvb.c b/drivers/media/usb/em28xx/em28xx-dvb.c
> index 8674ae5fce06..7ba209de57dd 100644
> --- a/drivers/media/usb/em28xx/em28xx-dvb.c
> +++ b/drivers/media/usb/em28xx/em28xx-dvb.c
> @@ -1473,6 +1473,8 @@ static int em28xx_dvb_fini(struct em28xx *dev)
>   		return 0;
>   	}
>   
> +	em28xx_info("Disconnecting DVB extension");
> +
>   	if (dev->dvb) {
>   		struct em28xx_dvb *dvb = dev->dvb;
>   
> diff --git a/drivers/media/usb/em28xx/em28xx-input.c b/drivers/media/usb/em28xx/em28xx-input.c
> index 33388b5922a0..bf04c5e1bd2a 100644
> --- a/drivers/media/usb/em28xx/em28xx-input.c
> +++ b/drivers/media/usb/em28xx/em28xx-input.c
> @@ -812,6 +812,8 @@ static int em28xx_ir_fini(struct em28xx *dev)
>   		return 0;
>   	}
>   
> +	em28xx_info("Disconnecting input extension");
> +
>   	em28xx_shutdown_buttons(dev);
>   
>   	/* skip detach on non attached boards */
> diff --git a/drivers/media/usb/em28xx/em28xx-video.c b/drivers/media/usb/em28xx/em28xx-video.c
> index dc10cec772ba..004fe12ceec7 100644
> --- a/drivers/media/usb/em28xx/em28xx-video.c
> +++ b/drivers/media/usb/em28xx/em28xx-video.c
> @@ -1894,6 +1894,8 @@ static int em28xx_v4l2_fini(struct em28xx *dev)
>   		return 0;
>   	}
>   
> +	em28xx_info("Disconnecting video extension");
> +
>   	v4l2_device_disconnect(&dev->v4l2_dev);
>   
>   	em28xx_uninit_usb_xfer(dev, EM28XX_ANALOG_MODE);

I would say "Closing" instead of "Disconnecting". That's also how we 
call the function that calls the extensions fini() methods.

Reviewed-by: Frank Schäfer <fschaefer.oss@googlemail.com>