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| author | imp <imp@FreeBSD.org> | 2005-09-19 03:10:21 +0000 |
|---|---|---|
| committer | imp <imp@FreeBSD.org> | 2005-09-19 03:10:21 +0000 |
| commit | 4e70215e6bf590140205774753c8b0a1f1fe9a36 (patch) | |
| tree | c3358cebc77043ea8b2a3a5036b02dad6a674b7e /sys/dev/cm | |
| parent | 37a0bbb7e543c6b2a2f055d676d5a94f781d7738 (diff) | |
| download | FreeBSD-src-4e70215e6bf590140205774753c8b0a1f1fe9a36.zip FreeBSD-src-4e70215e6bf590140205774753c8b0a1f1fe9a36.tar.gz | |
Make sure that we call if_free(ifp) after bus_teardown_intr. Since we
could get an interrupt after we free the ifp, and the interrupt
handler depended on the ifp being still alive, this could, in theory,
cause a crash. Eliminate this possibility by moving the if_free to
after the bus_teardown_intr() call.
Diffstat (limited to 'sys/dev/cm')
| -rw-r--r-- | sys/dev/cm/if_cm_isa.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/dev/cm/if_cm_isa.c b/sys/dev/cm/if_cm_isa.c index 1baa687..0eb070c 100644 --- a/sys/dev/cm/if_cm_isa.c +++ b/sys/dev/cm/if_cm_isa.c @@ -111,10 +111,10 @@ cm_isa_detach(device_t dev) s = splimp(); arc_ifdetach(ifp); - if_free(ifp); splx(s); bus_teardown_intr(dev, sc->irq_res, sc->irq_handle); + if_free(ifp); cm_release_resources(dev); return (0); |
