diff options
Diffstat (limited to 'drivers/media/video/pvrusb2/pvrusb2-v4l2.c')
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-v4l2.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-v4l2.c b/drivers/media/video/pvrusb2/pvrusb2-v4l2.c index 00306fa..26ffaa2 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-v4l2.c +++ b/drivers/media/video/pvrusb2/pvrusb2-v4l2.c @@ -932,6 +932,7 @@ static int pvr2_v4l2_open(struct inode *inode, struct file *file) unsigned int input_cnt,idx; int ret = 0; + lock_kernel(); dip = container_of(video_devdata(file),struct pvr2_v4l2_dev,devbase); vp = dip->v4lp; @@ -942,11 +943,13 @@ static int pvr2_v4l2_open(struct inode *inode, struct file *file) if (!pvr2_hdw_dev_ok(hdw)) { pvr2_trace(PVR2_TRACE_OPEN_CLOSE, "pvr2_v4l2_open: hardware not ready"); + unlock_kernel(); return -EIO; } fhp = kzalloc(sizeof(*fhp),GFP_KERNEL); if (!fhp) { + unlock_kernel(); return -ENOMEM; } @@ -976,6 +979,7 @@ static int pvr2_v4l2_open(struct inode *inode, struct file *file) fhp); kfree(fhp); + unlock_kernel(); return ret; } @@ -992,6 +996,7 @@ static int pvr2_v4l2_open(struct inode *inode, struct file *file) "Destroying pvr_v4l2_fh id=%p (input map failure)", fhp); kfree(fhp); + unlock_kernel(); return -ENOMEM; } input_cnt = 0; @@ -1015,6 +1020,7 @@ static int pvr2_v4l2_open(struct inode *inode, struct file *file) v4l2_prio_open(&vp->prio,&fhp->prio); fhp->fw_mode_flag = pvr2_hdw_cpufw_get_enabled(hdw); + unlock_kernel(); return 0; } |