diff options
Diffstat (limited to 'zaptel.c')
| -rwxr-xr-x | zaptel.c | 4 |
1 files changed, 3 insertions, 1 deletions
@@ -4080,19 +4080,21 @@ static int zt_chan_ioctl(struct inode *inode, struct file *file, unsigned int cm rv = 0; break; case ZT_HOOK: + get_user(j,(int *)data); if (chan->flags & ZT_FLAG_CLEAR) return -EINVAL; if (chan->sig == ZT_SIG_CAS) return -EINVAL; /* if no span, just do nothing */ if (!chan->span) return(0); + spin_lock_irqsave(&chan->lock, flags); /* if dialing, stop it */ chan->curtone = NULL; chan->dialing = 0; chan->txdialbuf[0] = '\0'; chan->tonep = 0; chan->pdialcount = 0; - get_user(j,(int *)data); + spin_unlock_irqrestore(&chan->lock, flags); if (chan->span->flags & ZT_FLAG_RBS) { switch (j) { case ZT_ONHOOK: |