diff options
Diffstat (limited to 'drivers/media/video/cx88/cx88-blackbird.c')
| -rw-r--r-- | drivers/media/video/cx88/cx88-blackbird.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/media/video/cx88/cx88-blackbird.c b/drivers/media/video/cx88/cx88-blackbird.c index 9a1374a38ec7..e71369754305 100644 --- a/drivers/media/video/cx88/cx88-blackbird.c +++ b/drivers/media/video/cx88/cx88-blackbird.c @@ -1057,12 +1057,15 @@ static int mpeg_open(struct inode *inode, struct file *file) struct cx8802_driver *drv = NULL; int err; + lock_kernel(); dev = cx8802_get_device(inode); dprintk( 1, "%s\n", __func__); - if (dev == NULL) + if (dev == NULL) { + unlock_kernel(); return -ENODEV; + } /* Make sure we can acquire the hardware */ drv = cx8802_get_driver(dev, CX88_MPEG_BLACKBIRD); @@ -1070,6 +1073,7 @@ static int mpeg_open(struct inode *inode, struct file *file) err = drv->request_acquire(drv); if(err != 0) { dprintk(1,"%s: Unable to acquire hardware, %d\n", __func__, err); + unlock_kernel(); return err; } } @@ -1077,6 +1081,7 @@ static int mpeg_open(struct inode *inode, struct file *file) if (blackbird_initialize_codec(dev) < 0) { if (drv) drv->request_release(drv); + unlock_kernel(); return -EINVAL; } dprintk(1,"open minor=%d\n",minor); @@ -1086,6 +1091,7 @@ static int mpeg_open(struct inode *inode, struct file *file) if (NULL == fh) { if (drv) drv->request_release(drv); + unlock_kernel(); return -ENOMEM; } file->private_data = fh; @@ -1101,6 +1107,7 @@ static int mpeg_open(struct inode *inode, struct file *file) /* FIXME: locking against other video device */ cx88_set_scale(dev->core, dev->width, dev->height, fh->mpegq.field); + unlock_kernel(); return 0; } |