Am 04.01.2014 11:55, schrieb Mauro Carvalho Chehab:
> Add a message with consistent prints before and after each
> extension initialization, and provide a better text for module
> load.
>
> While here, add a missing sanity check for extension finish
> code at em28xx-v4l extension.
>
> Signed-off-by: Mauro Carvalho Chehab <m.che...@samsung.com>
> ---
> drivers/media/usb/em28xx/em28xx-audio.c | 4 +++-
> drivers/media/usb/em28xx/em28xx-core.c | 2 +-
> drivers/media/usb/em28xx/em28xx-dvb.c | 7 ++++---
> drivers/media/usb/em28xx/em28xx-input.c | 4 ++++
> drivers/media/usb/em28xx/em28xx-video.c | 10 ++++++++--
> 5 files changed, 20 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/media/usb/em28xx/em28xx-audio.c
> b/drivers/media/usb/em28xx/em28xx-audio.c
> index 2fdb66ee44ab..263886adcf26 100644
> --- a/drivers/media/usb/em28xx/em28xx-audio.c
> +++ b/drivers/media/usb/em28xx/em28xx-audio.c
> @@ -649,7 +649,8 @@ static int em28xx_audio_init(struct em28xx *dev)
> return 0;
> }
>
> - printk(KERN_INFO "em28xx-audio.c: probing for em28xx Audio Vendor
> Class\n");
> + em28xx_info("Binding audio extension\n");
> +
> printk(KERN_INFO "em28xx-audio.c: Copyright (C) 2006 Markus "
> "Rechberger\n");
> printk(KERN_INFO "em28xx-audio.c: Copyright (C) 2007-2011 Mauro
> Carvalho Chehab\n");
> @@ -702,6 +703,7 @@ static int em28xx_audio_init(struct em28xx *dev)
> adev->sndcard = card;
> adev->udev = dev->udev;
>
> + em28xx_info("Audio extension successfully initialized\n");
> return 0;
> }
>
> diff --git a/drivers/media/usb/em28xx/em28xx-core.c
> b/drivers/media/usb/em28xx/em28xx-core.c
> index 1113d4e107d8..33cf26e106b5 100644
> --- a/drivers/media/usb/em28xx/em28xx-core.c
> +++ b/drivers/media/usb/em28xx/em28xx-core.c
> @@ -1069,7 +1069,7 @@ int em28xx_register_extension(struct em28xx_ops *ops)
> ops->init(dev);
> }
> mutex_unlock(&em28xx_devlist_mutex);
> - printk(KERN_INFO "Em28xx: Initialized (%s) extension\n", ops->name);
> + printk(KERN_INFO "em28xx: Registered (%s) extension\n", ops->name);
> return 0;
> }
> EXPORT_SYMBOL(em28xx_register_extension);
> diff --git a/drivers/media/usb/em28xx/em28xx-dvb.c
> b/drivers/media/usb/em28xx/em28xx-dvb.c
> index ddc0e609065d..f72663a9b5c5 100644
> --- a/drivers/media/usb/em28xx/em28xx-dvb.c
> +++ b/drivers/media/usb/em28xx/em28xx-dvb.c
> @@ -274,7 +274,7 @@ static int em28xx_stop_feed(struct dvb_demux_feed *feed)
> static int em28xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
> {
> struct em28xx_i2c_bus *i2c_bus = fe->dvb->priv;
> - struct em28xx *dev = i2c_bus->dev;
> + struct em28xx *dev = i2c_bus->dev;
>
> if (acquire)
> return em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
> @@ -992,10 +992,11 @@ static int em28xx_dvb_init(struct em28xx *dev)
>
> if (!dev->board.has_dvb) {
> /* This device does not support the extension */
> - printk(KERN_INFO "em28xx_dvb: This device does not support the
> extension\n");
> return 0;
> }
>
> + em28xx_info("Binding DVB extension\n");
> +
> dvb = kzalloc(sizeof(struct em28xx_dvb), GFP_KERNEL);
>
> if (dvb == NULL) {
> @@ -1407,7 +1408,7 @@ static int em28xx_dvb_init(struct em28xx *dev)
> /* MFE lock */
> dvb->adapter.mfe_shared = mfe_shared;
>
> - em28xx_info("Successfully loaded em28xx-dvb\n");
> + em28xx_info("DVB extension successfully initialized\n");
> ret:
> em28xx_set_mode(dev, EM28XX_SUSPEND);
> mutex_unlock(&dev->lock);
> diff --git a/drivers/media/usb/em28xx/em28xx-input.c
> b/drivers/media/usb/em28xx/em28xx-input.c
> index 93a7d02b9cb4..eed7dd79f734 100644
> --- a/drivers/media/usb/em28xx/em28xx-input.c
> +++ b/drivers/media/usb/em28xx/em28xx-input.c
> @@ -692,6 +692,8 @@ static int em28xx_ir_init(struct em28xx *dev)
> return 0;
> }
>
> + em28xx_info("Registering input extension\n");
> +
> ir = kzalloc(sizeof(*ir), GFP_KERNEL);
> rc = rc_allocate_device();
> if (!ir || !rc)
> @@ -785,6 +787,8 @@ static int em28xx_ir_init(struct em28xx *dev)
> if (err)
> goto error;
>
> + em28xx_info("Input extension successfully initalized\n");
> +
> return 0;
>
> error:
> diff --git a/drivers/media/usb/em28xx/em28xx-video.c
> b/drivers/media/usb/em28xx/em28xx-video.c
> index 56d1b46164a0..b767262c642b 100644
> --- a/drivers/media/usb/em28xx/em28xx-video.c
> +++ b/drivers/media/usb/em28xx/em28xx-video.c
> @@ -1884,6 +1884,11 @@ static int em28xx_v4l2_fini(struct em28xx *dev)
>
> /*FIXME: I2C IR should be disconnected */
>
> + if (!dev->has_video) {
> + /* This device does not support the v4l2 extension */
> + return 0;
> + }
> +
That's a separate change and AFAICS it's not needed.
> if (dev->radio_dev) {
> if (video_is_registered(dev->radio_dev))
> video_unregister_device(dev->radio_dev);
> @@ -2215,8 +2220,7 @@ static int em28xx_v4l2_init(struct em28xx *dev)
> return 0;
> }
>
> - printk(KERN_INFO "%s: v4l2 driver version %s\n",
> - dev->name, EM28XX_VERSION);
> + em28xx_info("Registering V4L2 extension\n");
>
> mutex_lock(&dev->lock);
>
> @@ -2498,6 +2502,8 @@ static int em28xx_v4l2_init(struct em28xx *dev)
> /* initialize videobuf2 stuff */
> em28xx_vb2_setup(dev);
>
> + em28xx_info("V4L2 extension successfully initialized\n");
> +
> err:
> mutex_unlock(&dev->lock);
> return ret;
--
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