diff options
Diffstat (limited to 'drivers/media/dvb/dvb-core/dvbdev.c')
| -rw-r--r-- | drivers/media/dvb/dvb-core/dvbdev.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/media/dvb/dvb-core/dvbdev.c b/drivers/media/dvb/dvb-core/dvbdev.c index 65d69665f1f..6a32680dbb1 100644 --- a/drivers/media/dvb/dvb-core/dvbdev.c +++ b/drivers/media/dvb/dvb-core/dvbdev.c @@ -79,6 +79,10 @@ static int dvb_device_open(struct inode *inode, struct file *file) file->private_data = dvbdev; old_fops = file->f_op; file->f_op = fops_get(dvbdev->fops); + if (file->f_op == NULL) { + file->f_op = old_fops; + goto fail; + } if(file->f_op->open) err = file->f_op->open(inode,file); if (err) { @@ -90,6 +94,7 @@ static int dvb_device_open(struct inode *inode, struct file *file) unlock_kernel(); return err; } +fail: up_read(&minor_rwsem); unlock_kernel(); return -ENODEV; |