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| author | Hans Verkuil <hverkuil@xs4all.nl> | 2010-05-01 08:03:24 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-05-19 12:58:54 -0300 |
| commit | ffb4877ba013f94322083f77cbb05b35c2a218aa (patch) | |
| tree | 0d041da73986e1dc7c845ff4418fb20f46bd7506 /drivers/media/video/v4l2-common.c | |
| parent | 530d2d32068eaf3616e0ce9e58a5fde5701c3380 (diff) | |
| download | linux-ffb4877ba013f94322083f77cbb05b35c2a218aa.tar.gz linux-ffb4877ba013f94322083f77cbb05b35c2a218aa.tar.bz2 linux-ffb4877ba013f94322083f77cbb05b35c2a218aa.zip | |
V4L/DVB: v4l2-common: simplify prio utility functions
v4l2_prio_init/open/close returned an int when in fact they would
always return 0. Make these void functions.
v4l2_prio_close and v4l2_prio_check pass an enum v4l2_priority as a
pointer for no good reason. Replace with a normal enum v4l2_priority
argument.
These changes will simplify the work of moving priority handling into
the v4l core.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/v4l2-common.c')
| -rw-r--r-- | drivers/media/video/v4l2-common.c | 22 |
1 files changed, 9 insertions, 13 deletions
diff --git a/drivers/media/video/v4l2-common.c b/drivers/media/video/v4l2-common.c index 035c414507a1..4e53b0b3339c 100644 --- a/drivers/media/video/v4l2-common.c +++ b/drivers/media/video/v4l2-common.c @@ -88,10 +88,9 @@ MODULE_LICENSE("GPL"); val == V4L2_PRIORITY_INTERACTIVE || \ val == V4L2_PRIORITY_RECORD) -int v4l2_prio_init(struct v4l2_prio_state *global) +void v4l2_prio_init(struct v4l2_prio_state *global) { - memset(global,0,sizeof(*global)); - return 0; + memset(global, 0, sizeof(*global)); } EXPORT_SYMBOL(v4l2_prio_init); @@ -111,17 +110,16 @@ int v4l2_prio_change(struct v4l2_prio_state *global, enum v4l2_priority *local, } EXPORT_SYMBOL(v4l2_prio_change); -int v4l2_prio_open(struct v4l2_prio_state *global, enum v4l2_priority *local) +void v4l2_prio_open(struct v4l2_prio_state *global, enum v4l2_priority *local) { - return v4l2_prio_change(global,local,V4L2_PRIORITY_DEFAULT); + v4l2_prio_change(global, local, V4L2_PRIORITY_DEFAULT); } EXPORT_SYMBOL(v4l2_prio_open); -int v4l2_prio_close(struct v4l2_prio_state *global, enum v4l2_priority *local) +void v4l2_prio_close(struct v4l2_prio_state *global, enum v4l2_priority local) { - if (V4L2_PRIO_VALID(*local)) - atomic_dec(&global->prios[*local]); - return 0; + if (V4L2_PRIO_VALID(local)) + atomic_dec(&global->prios[local]); } EXPORT_SYMBOL(v4l2_prio_close); @@ -137,11 +135,9 @@ enum v4l2_priority v4l2_prio_max(struct v4l2_prio_state *global) } EXPORT_SYMBOL(v4l2_prio_max); -int v4l2_prio_check(struct v4l2_prio_state *global, enum v4l2_priority *local) +int v4l2_prio_check(struct v4l2_prio_state *global, enum v4l2_priority local) { - if (*local < v4l2_prio_max(global)) - return -EBUSY; - return 0; + return (local < v4l2_prio_max(global)) ? -EBUSY : 0; } EXPORT_SYMBOL(v4l2_prio_check); |