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Remove paranoid thread hijacking check. It cause wierd behaviour

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(dangling channel - process association) especially in threaded
or fork()ed apps.
This commit is contained in:
Ariff Abdullah 2006-03-30 06:17:03 +00:00
parent 0f0d108e27
commit 844f9220aa
1 changed files with 2 additions and 8 deletions
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10
sys/dev/sound/pcm/dsp.c
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@ -306,10 +306,6 @@ dsp_close(struct cdev *i_dev, int flags, int mode, struct thread *td)
pcm_lock(d);
rdch = i_dev->si_drv1;
wrch = i_dev->si_drv2;
if (rdch && td->td_proc->p_pid != rdch->pid)
rdch = NULL;
if (wrch && td->td_proc->p_pid != wrch->pid)
wrch = NULL;
pcm_unlock(d);
if (rdch || wrch) {
@ -431,11 +427,9 @@ dsp_ioctl(struct cdev *i_dev, u_long cmd, caddr_t arg, int mode, struct thread *
getchns(i_dev, &rdch, &wrch, 0);
kill = 0;
if (wrch && ((wrch->flags & CHN_F_DEAD) ||
td->td_proc->p_pid != wrch->pid))
if (wrch && (wrch->flags & CHN_F_DEAD))
kill |= 1;
if (rdch && ((rdch->flags & CHN_F_DEAD) ||
td->td_proc->p_pid != rdch->pid))
if (rdch && (rdch->flags & CHN_F_DEAD))
kill |= 2;
if (kill == 3) {
relchns(i_dev, rdch, wrch, 0);