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| author | yongari <yongari@FreeBSD.org> | 2011-10-17 19:49:00 +0000 |
|---|---|---|
| committer | yongari <yongari@FreeBSD.org> | 2011-10-17 19:49:00 +0000 |
| commit | 4c371e596be040085df1b5f9e469ab9fd8278c89 (patch) | |
| tree | d177532a5533584316ef20ec33ef25a4e8e17cac /sys/dev/alc | |
| parent | 56e15a778cfacd77cc855073167c952c91381994 (diff) | |
| download | FreeBSD-src-4c371e596be040085df1b5f9e469ab9fd8278c89.zip FreeBSD-src-4c371e596be040085df1b5f9e469ab9fd8278c89.tar.gz | |
Close a race where SIOCGIFMEDIA ioctl get inconsistent link status.
Because driver is accessing a common MII structure in
mii_pollstat(), updating user supplied structure should be done
before dropping a driver lock.
Reported by: Karim (fodillemlinkarimi <> gmail dot com)
Diffstat (limited to 'sys/dev/alc')
| -rw-r--r-- | sys/dev/alc/if_alc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/dev/alc/if_alc.c b/sys/dev/alc/if_alc.c index c13cb18..c73075c 100644 --- a/sys/dev/alc/if_alc.c +++ b/sys/dev/alc/if_alc.c @@ -349,9 +349,9 @@ alc_mediastatus(struct ifnet *ifp, struct ifmediareq *ifmr) mii = device_get_softc(sc->alc_miibus); mii_pollstat(mii); - ALC_UNLOCK(sc); ifmr->ifm_status = mii->mii_media_status; ifmr->ifm_active = mii->mii_media_active; + ALC_UNLOCK(sc); } static int |
