diff options
Diffstat (limited to 'drivers/media/video/bt8xx/bttv-driver.c')
| -rw-r--r-- | drivers/media/video/bt8xx/bttv-driver.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/media/video/bt8xx/bttv-driver.c b/drivers/media/video/bt8xx/bttv-driver.c index 23b7499b318..8cc6dd28d6a 100644 --- a/drivers/media/video/bt8xx/bttv-driver.c +++ b/drivers/media/video/bt8xx/bttv-driver.c @@ -41,6 +41,7 @@ #include <linux/fs.h> #include <linux/kernel.h> #include <linux/sched.h> +#include <linux/smp_lock.h> #include <linux/interrupt.h> #include <linux/kdev_t.h> #include "bttvp.h" @@ -3152,6 +3153,7 @@ static unsigned int bttv_poll(struct file *file, poll_table *wait) struct bttv_fh *fh = file->private_data; struct bttv_buffer *buf; enum v4l2_field field; + unsigned int rc = POLLERR; if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) { if (!check_alloc_btres(fh->btv,fh,RESOURCE_VBI)) @@ -3160,9 +3162,10 @@ static unsigned int bttv_poll(struct file *file, poll_table *wait) } if (check_btres(fh,RESOURCE_VIDEO_STREAM)) { + mutex_lock(&fh->cap.vb_lock); /* streaming capture */ if (list_empty(&fh->cap.stream)) - return POLLERR; + goto err; buf = list_entry(fh->cap.stream.next,struct bttv_buffer,vb.stream); } else { /* read() capture */ @@ -3191,11 +3194,12 @@ static unsigned int bttv_poll(struct file *file, poll_table *wait) poll_wait(file, &buf->vb.done, wait); if (buf->vb.state == VIDEOBUF_DONE || buf->vb.state == VIDEOBUF_ERROR) - return POLLIN|POLLRDNORM; - return 0; + rc = POLLIN|POLLRDNORM; + else + rc = 0; err: mutex_unlock(&fh->cap.vb_lock); - return POLLERR; + return rc; } static int bttv_open(struct file *file) @@ -4166,7 +4170,6 @@ static struct video_device *vdev_init(struct bttv *btv, if (NULL == vfd) return NULL; *vfd = *template; - vfd->minor = -1; vfd->v4l2_dev = &btv->c.v4l2_dev; vfd->release = video_device_release; vfd->debug = bttv_debug; @@ -4416,6 +4419,7 @@ static int __devinit bttv_probe(struct pci_dev *dev, /* some card-specific stuff (needs working i2c) */ bttv_init_card2(btv); + bttv_init_tuner(btv); init_irqreg(btv); /* register video4linux + input */ @@ -4629,7 +4633,7 @@ static int __init bttv_init_module(void) #endif if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME) gbuffers = 2; - if (gbufsize < 0 || gbufsize > BTTV_MAX_FBUF) + if (gbufsize > BTTV_MAX_FBUF) gbufsize = BTTV_MAX_FBUF; gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK; if (bttv_verbose) |