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author | Hans Verkuil <hverkuil@xs4all.nl> | 2010-11-14 09:36:23 -0300 |
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committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-12-01 20:10:05 -0200 |
commit | 32958fdd1663aeaa23b5edbfbb0db684ffd4e20e (patch) | |
tree | 849f927c20c352650b0d39110ac5d223941c4c44 /block | |
parent | e53beacd23d9cb47590da6a7a7f6d417b941a994 (diff) | |
download | linux-32958fdd1663aeaa23b5edbfbb0db684ffd4e20e.tar.gz linux-32958fdd1663aeaa23b5edbfbb0db684ffd4e20e.tar.bz2 linux-32958fdd1663aeaa23b5edbfbb0db684ffd4e20e.zip |
[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>
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