diff options
| author | imp <imp@FreeBSD.org> | 2001-02-20 04:43:59 +0000 |
|---|---|---|
| committer | imp <imp@FreeBSD.org> | 2001-02-20 04:43:59 +0000 |
| commit | 186e24ad6b2494564362a9d8c0824ab7c38db682 (patch) | |
| tree | 112ea489367b76a80315b09b35cfa4677feecabd /sys/pci | |
| parent | 3a51f790ed16e34cb3c962b06ccd27971cf4a9c4 (diff) | |
| download | FreeBSD-src-186e24ad6b2494564362a9d8c0824ab7c38db682.zip FreeBSD-src-186e24ad6b2494564362a9d8c0824ab7c38db682.tar.gz | |
Take luigi's suggestion and move the check for nothing to do to before the
lock so we don't have lots of null lock/release pairs.
Diffstat (limited to 'sys/pci')
| -rw-r--r-- | sys/pci/if_dc.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/sys/pci/if_dc.c b/sys/pci/if_dc.c index 94c284b..3b33d11 100644 --- a/sys/pci/if_dc.c +++ b/sys/pci/if_dc.c @@ -2713,13 +2713,12 @@ static void dc_intr(arg) u_int32_t status; sc = arg; - DC_LOCK(sc); - ifp = &sc->arpcom.ac_if; - if ( (CSR_READ_4(sc, DC_ISR) & DC_INTRS) == 0) { - DC_UNLOCK(sc); + if ( (CSR_READ_4(sc, DC_ISR) & DC_INTRS) == 0) return ; - } + + DC_LOCK(sc); + ifp = &sc->arpcom.ac_if; /* Suppress unwanted interrupts */ if (!(ifp->if_flags & IFF_UP)) { |
