diff options
| -rw-r--r-- | drivers/media/video/saa7134/saa7134-core.c | 44 | ||||
| -rw-r--r-- | drivers/media/video/saa7134/saa7134-video.c | 14 | ||||
| -rw-r--r-- | drivers/media/video/saa7134/saa7134.h | 1 |
3 files changed, 30 insertions, 29 deletions
diff --git a/drivers/media/video/saa7134/saa7134-core.c b/drivers/media/video/saa7134/saa7134-core.c index 6a1738dccda7..ac574452d01e 100644 --- a/drivers/media/video/saa7134/saa7134-core.c +++ b/drivers/media/video/saa7134/saa7134-core.c @@ -86,8 +86,10 @@ MODULE_PARM_DESC(radio_nr, "radio device number"); MODULE_PARM_DESC(tuner, "tuner type"); MODULE_PARM_DESC(card, "card type"); -static DEFINE_MUTEX(devlist_lock); +DEFINE_MUTEX(saa7134_devlist_lock); +EXPORT_SYMBOL(saa7134_devlist_lock); LIST_HEAD(saa7134_devlist); +EXPORT_SYMBOL(saa7134_devlist); static LIST_HEAD(mops_list); static unsigned int saa7134_devcount; @@ -991,6 +993,18 @@ static int __devinit saa7134_initdev(struct pci_dev *pci_dev, v4l2_prio_init(&dev->prio); + mutex_lock(&saa7134_devlist_lock); + list_for_each_entry(mops, &mops_list, next) + mpeg_ops_attach(mops, dev); + list_add_tail(&dev->devlist, &saa7134_devlist); + mutex_unlock(&saa7134_devlist_lock); + + /* check for signal */ + saa7134_irq_video_signalchange(dev); + + if (TUNER_ABSENT != dev->tuner_type) + saa_call_all(dev, core, s_standby, 0); + /* register v4l devices */ if (saa7134_no_overlay > 0) printk(KERN_INFO "%s: Overlay support disabled.\n", dev->name); @@ -1028,21 +1042,8 @@ static int __devinit saa7134_initdev(struct pci_dev *pci_dev, /* everything worked */ saa7134_devcount++; - mutex_lock(&devlist_lock); - list_for_each_entry(mops, &mops_list, next) - mpeg_ops_attach(mops, dev); - list_add_tail(&dev->devlist,&saa7134_devlist); - mutex_unlock(&devlist_lock); - - /* check for signal */ - saa7134_irq_video_signalchange(dev); - - if (saa7134_dmasound_init && !dev->dmasound.priv_data) { + if (saa7134_dmasound_init && !dev->dmasound.priv_data) saa7134_dmasound_init(dev); - } - - if (TUNER_ABSENT != dev->tuner_type) - saa_call_all(dev, core, s_standby, 0); return 0; @@ -1093,11 +1094,11 @@ static void __devexit saa7134_finidev(struct pci_dev *pci_dev) saa7134_hwfini(dev); /* unregister */ - mutex_lock(&devlist_lock); + mutex_lock(&saa7134_devlist_lock); list_del(&dev->devlist); list_for_each_entry(mops, &mops_list, next) mpeg_ops_detach(mops, dev); - mutex_unlock(&devlist_lock); + mutex_unlock(&saa7134_devlist_lock); saa7134_devcount--; saa7134_i2c_unregister(dev); @@ -1254,11 +1255,11 @@ int saa7134_ts_register(struct saa7134_mpeg_ops *ops) { struct saa7134_dev *dev; - mutex_lock(&devlist_lock); + mutex_lock(&saa7134_devlist_lock); list_for_each_entry(dev, &saa7134_devlist, devlist) mpeg_ops_attach(ops, dev); list_add_tail(&ops->next,&mops_list); - mutex_unlock(&devlist_lock); + mutex_unlock(&saa7134_devlist_lock); return 0; } @@ -1266,11 +1267,11 @@ void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops) { struct saa7134_dev *dev; - mutex_lock(&devlist_lock); + mutex_lock(&saa7134_devlist_lock); list_del(&ops->next); list_for_each_entry(dev, &saa7134_devlist, devlist) mpeg_ops_detach(ops, dev); - mutex_unlock(&devlist_lock); + mutex_unlock(&saa7134_devlist_lock); } EXPORT_SYMBOL(saa7134_ts_register); @@ -1314,7 +1315,6 @@ module_exit(saa7134_fini); /* ----------------------------------------------------------- */ EXPORT_SYMBOL(saa7134_set_gpio); -EXPORT_SYMBOL(saa7134_devlist); EXPORT_SYMBOL(saa7134_boards); /* ----------------- for the DMA sound modules --------------- */ diff --git a/drivers/media/video/saa7134/saa7134-video.c b/drivers/media/video/saa7134/saa7134-video.c index adfdb662c5eb..aa7fa1f73a56 100644 --- a/drivers/media/video/saa7134/saa7134-video.c +++ b/drivers/media/video/saa7134/saa7134-video.c @@ -1335,7 +1335,7 @@ static int video_open(struct file *file) enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE; int radio = 0; - lock_kernel(); + mutex_lock(&saa7134_devlist_lock); list_for_each_entry(dev, &saa7134_devlist, devlist) { if (dev->video_dev && (dev->video_dev->minor == minor)) goto found; @@ -1348,19 +1348,20 @@ static int video_open(struct file *file) goto found; } } - unlock_kernel(); + mutex_unlock(&saa7134_devlist_lock); return -ENODEV; - found: + +found: + mutex_unlock(&saa7134_devlist_lock); dprintk("open minor=%d radio=%d type=%s\n",minor,radio, v4l2_type_names[type]); /* allocate + initialize per filehandle data */ fh = kzalloc(sizeof(*fh),GFP_KERNEL); - if (NULL == fh) { - unlock_kernel(); + if (NULL == fh) return -ENOMEM; - } + file->private_data = fh; fh->dev = dev; fh->radio = radio; @@ -1393,7 +1394,6 @@ static int video_open(struct file *file) /* switch to video/vbi mode */ video_mux(dev,dev->ctl_input); } - unlock_kernel(); return 0; } diff --git a/drivers/media/video/saa7134/saa7134.h b/drivers/media/video/saa7134/saa7134.h index 157f595c3ed1..4552a4d6f192 100644 --- a/drivers/media/video/saa7134/saa7134.h +++ b/drivers/media/video/saa7134/saa7134.h @@ -641,6 +641,7 @@ struct saa7134_dev { /* saa7134-core.c */ extern struct list_head saa7134_devlist; +extern struct mutex saa7134_devlist_lock; extern int saa7134_no_overlay; void saa7134_track_gpio(struct saa7134_dev *dev, char *msg); |