diff options
| -rw-r--r-- | zaptel.c | 7 |
1 files changed, 7 insertions, 0 deletions
@@ -2347,8 +2347,10 @@ static int zt_specchan_open(struct inode *inode, struct file *file, int unit, in else if ((chans[unit]->sig & __ZT_SIG_DACS) == __ZT_SIG_DACS) res = -EBUSY; else { + unsigned long flags; /* Assume everything is going to be okay */ res = initialize_channel(chans[unit]); + spin_lock_irqsave(&chans[unit]->lock, flags); if (chans[unit]->flags & ZT_FLAG_PSEUDO) chans[unit]->flags |= ZT_FLAG_AUDIO; if (chans[unit]->span && chans[unit]->span->open) @@ -2360,7 +2362,9 @@ static int zt_specchan_open(struct inode *inode, struct file *file, int unit, in MOD_INC_USE_COUNT; #endif chans[unit]->flags |= ZT_FLAG_OPEN; + spin_unlock_irqrestore(&chans[unit]->lock, flags); } else { + spin_unlock_irqrestore(&chans[unit]->lock, flags); close_channel(chans[unit]); } } @@ -2373,7 +2377,10 @@ static int zt_specchan_release(struct inode *node, struct file *file, int unit) { int res=0; if (chans[unit]) { + unsigned long flags; + spin_lock_irqsave(&chans[unit]->lock, flags); chans[unit]->flags &= ~ZT_FLAG_OPEN; + spin_unlock_irqrestore(&chans[unit]->lock, flags); chans[unit]->file = NULL; close_channel(chans[unit]); if (chans[unit]->span && chans[unit]->span->close) |