stge: fix null pointer dereference
stge_attach() could fail at line 464, sc->sc_spec remains NULL when calling stge_detach(), thus bus_release_resources() at line 704 will trigger null pointer dereference. We need to check the nulliness before calling bus_release_resources(). PR: 258420 Reviewed by: markj MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D34629
This commit is contained in:
parent
31190aa02e
commit
2108cc7290
@ -699,7 +699,9 @@ stge_detach(device_t dev)
|
|||||||
bus_teardown_intr(dev, sc->sc_res[1], sc->sc_ih);
|
bus_teardown_intr(dev, sc->sc_res[1], sc->sc_ih);
|
||||||
sc->sc_ih = NULL;
|
sc->sc_ih = NULL;
|
||||||
}
|
}
|
||||||
bus_release_resources(dev, sc->sc_spec, sc->sc_res);
|
|
||||||
|
if (sc->sc_spec)
|
||||||
|
bus_release_resources(dev, sc->sc_spec, sc->sc_res);
|
||||||
|
|
||||||
mtx_destroy(&sc->sc_mii_mtx);
|
mtx_destroy(&sc->sc_mii_mtx);
|
||||||
mtx_destroy(&sc->sc_mtx);
|
mtx_destroy(&sc->sc_mtx);
|
||||||
|
Loading…
Reference in New Issue
Block a user