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author | Mauro Carvalho Chehab <mchehab@infradead.org> | 2008-09-03 17:11:53 -0300 |
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committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-09-03 18:37:12 -0300 |
commit | 980d4f17345fe420fda2a84cd4a28d5d41d73cef (patch) | |
tree | 23a7abc26273cf6021f5e82b52e1d06f6d0b47f4 /drivers/scsi/qla2xxx/qla_version.h | |
parent | f3b9f50ef771670b5d94c568241d6766691c6c18 (diff) |
V4L/DVB (8751): vivi: Fix some issues at vivi register routine
This patch fixes several small issues at vivi register routines:
1) minor and n_devs should be unsigned;
2) n_devs = 0 were not properly handled;
3) if n_devs specify a high number, the driver would just roll back and
won't register any device. The proper behaviour is to keep all succeded
devices registered;
4) both n_devs and minor were using 0 as permissions. Better to have
them with 0444.
With the current patch, if n_devs specify a very large value, it will
register all possible devices. For example, on a machine without any
other V4L drivers loaded, with this patch, we will have something like:
vivi: V4L2 device registered as /dev/video0
vivi: V4L2 device registered as /dev/video1
vivi: V4L2 device registered as /dev/video2
...
vivi: V4L2 device registered as /dev/video31
video_register_device_index: get_index failed
Video Technology Magazine Virtual Video Capture Board ver 0.5.0 successfully loaded.
5) The number of allocated devices on success is now kept at n_devs:
$ cat /sys/module/vivi/parameters/n_devs
32
Thanks to Henne <henne@nachtwindheim.de> for pointing that there were
some issues at vivi.
Cc: Henne <henne@nachtwindheim.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_version.h')
0 files changed, 0 insertions, 0 deletions