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Remove unnecessary locking for td_dupfd (it requires no locks).

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This commit is contained in:
John Baldwin 2006-07-18 22:31:33 +00:00
parent c2de792e32
commit 0c6d6356ba
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=160490
1 changed files with 1 additions and 9 deletions
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10
sys/dev/streams/streams.c
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@ -198,12 +198,8 @@ streamsopen(struct cdev *dev, int oflags, int devtype, struct thread *td)
int family;
struct proc *p = td->td_proc;
PROC_LOCK(p);
if (td->td_dupfd >= 0) {
PROC_UNLOCK(p);
if (td->td_dupfd >= 0)
return ENODEV;
}
PROC_UNLOCK(p);
switch (minor(dev)) {
case dev_udp:
@ -280,9 +276,7 @@ streamsopen(struct cdev *dev, int oflags, int devtype, struct thread *td)
(void)svr4_stream_get(fp);
fdrop(fp, td);
PROC_LOCK(p);
td->td_dupfd = fd;
PROC_UNLOCK(p);
return ENXIO;
}
@ -324,9 +318,7 @@ svr4_ptm_alloc(td)
case ENXIO:
return error;
case 0:
PROC_LOCK(p);
td->td_dupfd = td->td_retval[0];
PROC_UNLOCK(p);
return ENXIO;
default:
if (ttynumbers[++n] == '\0') {