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| author | Hans Verkuil <hverkuil@xs4all.nl> | 2010-11-14 09:36:23 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-12-01 20:10:05 -0200 |
| commit | 32958fdd1663aeaa23b5edbfbb0db684ffd4e20e (patch) | |
| tree | 849f927c20c352650b0d39110ac5d223941c4c44 /drivers/media/radio/radio-maestro.c | |
| parent | e53beacd23d9cb47590da6a7a7f6d417b941a994 (diff) | |
| download | op-kernel-dev-32958fdd1663aeaa23b5edbfbb0db684ffd4e20e.zip op-kernel-dev-32958fdd1663aeaa23b5edbfbb0db684ffd4e20e.tar.gz | |
[media] BKL: trivial BKL removal from V4L2 radio drivers
The patch converts a bunch of V4L2 radio drivers to unlocked_ioctl.
These are all simple conversions: most already had a lock and so the ioctl
fop could simply be replaced by unlocked_ioctl.
radio-miropcm20.c was converted to use the new V4L2 core lock.
While doing this work I noticed that many of these drivers initialized
some more fields or muted audio or something like that *after* creating
the device node. This should be done before the device node is created
to prevent problems. Especially hal tends to grab a device node as soon
as it is created.
In one or two cases the mutex_init was even done after the device creation!
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/radio/radio-maestro.c')
| -rw-r--r-- | drivers/media/radio/radio-maestro.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/drivers/media/radio/radio-maestro.c b/drivers/media/radio/radio-maestro.c index 08f1051..6af61bf 100644 --- a/drivers/media/radio/radio-maestro.c +++ b/drivers/media/radio/radio-maestro.c @@ -299,7 +299,7 @@ static int vidioc_s_audio(struct file *file, void *priv, static const struct v4l2_file_operations maestro_fops = { .owner = THIS_MODULE, - .ioctl = video_ioctl2, + .unlocked_ioctl = video_ioctl2, }; static const struct v4l2_ioctl_ops maestro_ioctl_ops = { @@ -383,22 +383,20 @@ static int __devinit maestro_probe(struct pci_dev *pdev, dev->vdev.release = video_device_release_empty; video_set_drvdata(&dev->vdev, dev); + if (!radio_power_on(dev)) { + retval = -EIO; + goto errfr1; + } + retval = video_register_device(&dev->vdev, VFL_TYPE_RADIO, radio_nr); if (retval) { v4l2_err(v4l2_dev, "can't register video device!\n"); goto errfr1; } - if (!radio_power_on(dev)) { - retval = -EIO; - goto errunr; - } - v4l2_info(v4l2_dev, "version " DRIVER_VERSION "\n"); return 0; -errunr: - video_unregister_device(&dev->vdev); errfr1: v4l2_device_unregister(v4l2_dev); errfr: |
