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| author | Ian Lepore <ian@FreeBSD.org> | 2017-01-13 16:37:38 +0000 |
|---|---|---|
| committer | Ian Lepore <ian@FreeBSD.org> | 2017-01-13 16:37:38 +0000 |
| commit | a6f63533a7045d56ea46bd68a14cbf4053e63aa5 (patch) | |
| tree | 2eca54863fed9f962b0c1ca85741ac42749b2c21 /sys/kern/tty_inq.c | |
| parent | 2f21ec0129dc3be555536d5177c5e0f4f8728f6b (diff) | |
| download | src-test2-a6f63533a7045d56ea46bd68a14cbf4053e63aa5.tar.gz src-test2-a6f63533a7045d56ea46bd68a14cbf4053e63aa5.zip | |
Notes
Diffstat (limited to 'sys/kern/tty_inq.c')
| -rw-r--r-- | sys/kern/tty_inq.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/sys/kern/tty_inq.c b/sys/kern/tty_inq.c index 97017ac75a41..163b19459fe9 100644 --- a/sys/kern/tty_inq.c +++ b/sys/kern/tty_inq.c @@ -112,7 +112,7 @@ static uma_zone_t ttyinq_zone; TTYINQ_INSERT_TAIL(ti, tib); \ } while (0) -void +int ttyinq_setsize(struct ttyinq *ti, struct tty *tp, size_t size) { struct ttyinq_block *tib; @@ -134,8 +134,14 @@ ttyinq_setsize(struct ttyinq *ti, struct tty *tp, size_t size) tib = uma_zalloc(ttyinq_zone, M_WAITOK); tty_lock(tp); + if (tty_gone(tp)) { + uma_zfree(ttyinq_zone, tib); + return (ENXIO); + } + TTYINQ_INSERT_TAIL(ti, tib); } + return (0); } void |