diff options
Diffstat (limited to 'linux/drivers/media/video/cx18/cx18-streams.c')
-rw-r--r-- | linux/drivers/media/video/cx18/cx18-streams.c | 42 |
1 files changed, 25 insertions, 17 deletions
diff --git a/linux/drivers/media/video/cx18/cx18-streams.c b/linux/drivers/media/video/cx18/cx18-streams.c index f85f4a2cd..d29a0b61b 100644 --- a/linux/drivers/media/video/cx18/cx18-streams.c +++ b/linux/drivers/media/video/cx18/cx18-streams.c @@ -200,16 +200,18 @@ static int cx18_prep_dev(struct cx18 *cx, int type) /* Initialize v4l2 variables and register v4l2 devices */ int cx18_streams_setup(struct cx18 *cx) { - int type; + int type, ret; /* Setup V4L2 Devices */ for (type = 0; type < CX18_MAX_STREAMS; type++) { /* Prepare device */ - if (cx18_prep_dev(cx, type)) + ret = cx18_prep_dev(cx, type); + if (ret < 0) break; /* Allocate Stream */ - if (cx18_stream_alloc(&cx->streams[type])) + ret = cx18_stream_alloc(&cx->streams[type]); + if (ret < 0) break; } if (type == CX18_MAX_STREAMS) @@ -217,14 +219,14 @@ int cx18_streams_setup(struct cx18 *cx) /* One or more streams could not be initialized. Clean 'em all up. */ cx18_streams_cleanup(cx, 0); - return -ENOMEM; + return ret; } static int cx18_reg_dev(struct cx18 *cx, int type) { struct cx18_stream *s = &cx->streams[type]; int vfl_type = cx18_stream_info[type].vfl_type; - int num; + int num, ret; /* TODO: Shouldn't this be a VFL_TYPE_TRANSPORT or something? * We need a VFL_TYPE_TS defined. @@ -233,9 +235,10 @@ static int cx18_reg_dev(struct cx18 *cx, int type) /* just return if no DVB is supported */ if ((cx->card->hw_all & CX18_HW_DVB) == 0) return 0; - if (cx18_dvb_register(s) < 0) { + ret = cx18_dvb_register(s); + if (ret < 0) { CX18_ERR("DVB failed to register\n"); - return -EINVAL; + return ret; } } @@ -252,12 +255,13 @@ static int cx18_reg_dev(struct cx18 *cx, int type) } /* Register device. First try the desired minor, then any free one. */ - if (video_register_device(s->v4l2dev, vfl_type, num)) { + ret = video_register_device(s->v4l2dev, vfl_type, num); + if (ret < 0) { CX18_ERR("Couldn't register v4l2 device for %s kernel number %d\n", s->name, num); video_device_release(s->v4l2dev); s->v4l2dev = NULL; - return -ENOMEM; + return ret; } num = s->v4l2dev->num; @@ -290,18 +294,22 @@ static int cx18_reg_dev(struct cx18 *cx, int type) int cx18_streams_register(struct cx18 *cx) { int type; - int err = 0; + int err; + int ret = 0; /* Register V4L2 devices */ - for (type = 0; type < CX18_MAX_STREAMS; type++) - err |= cx18_reg_dev(cx, type); + for (type = 0; type < CX18_MAX_STREAMS; type++) { + err = cx18_reg_dev(cx, type); + if (err && ret == 0) + ret = err; + } - if (err == 0) + if (ret == 0) return 0; /* One or more streams could not be initialized. Clean 'em all up. */ cx18_streams_cleanup(cx, 1); - return -ENOMEM; + return ret; } /* Unregister v4l2 devices */ @@ -579,9 +587,6 @@ int cx18_stop_v4l2_encode_stream(struct cx18_stream *s, int gop_end) #endif } - /* Tell the CX23418 it can't use our buffers anymore */ - cx18_vapi(cx, CX18_CPU_DE_RELEASE_MDL, 1, s->handle); - if (s->type != CX18_ENC_STREAM_TYPE_TS) atomic_dec(&cx->ana_capturing); atomic_dec(&cx->tot_capturing); @@ -589,6 +594,9 @@ int cx18_stop_v4l2_encode_stream(struct cx18_stream *s, int gop_end) /* Clear capture and no-read bits */ clear_bit(CX18_F_S_STREAMING, &s->s_flags); + /* Tell the CX23418 it can't use our buffers anymore */ + cx18_vapi(cx, CX18_CPU_DE_RELEASE_MDL, 1, s->handle); + cx18_vapi(cx, CX18_DESTROY_TASK, 1, s->handle); s->handle = CX18_INVALID_TASK_HANDLE; |