diff options
| author | Nathan Binkert <nate@cvs.openbsd.org> | 2002-04-26 04:36:39 +0000 |
|---|---|---|
| committer | Nathan Binkert <nate@cvs.openbsd.org> | 2002-04-26 04:36:39 +0000 |
| commit | 7a73406f17db7b8a068e2dad70e7c2074842bf79 (patch) | |
| tree | bf1086da517709cfe9aa7eb513fbf002b3bb3d1e /sys/dev | |
| parent | 1af502855dfc89da4e63fc61e60f0c2dd4d1b555 (diff) | |
Don't try to destroy a dmamap if the map was never created
This prevents a panic from occuring if the attach fails before the dmamap
is created
Diffstat (limited to 'sys/dev')
| -rw-r--r-- | sys/dev/pci/if_gx.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/sys/dev/pci/if_gx.c b/sys/dev/pci/if_gx.c index 37ddf04b7e8..4b8363d1755 100644 --- a/sys/dev/pci/if_gx.c +++ b/sys/dev/pci/if_gx.c @@ -1,4 +1,4 @@ -/* $OpenBSD: if_gx.c,v 1.3 2002/04/17 18:30:45 fgsch Exp $ */ +/* $OpenBSD: if_gx.c,v 1.4 2002/04/26 04:36:38 nate Exp $ */ /*- * Copyright (c) 1999,2000,2001 Jonathan Lemon * All rights reserved. @@ -498,10 +498,14 @@ gx_release(struct gx_softc *gx) #endif for (i = 0; i < GX_RX_RING_CNT; i++) - bus_dmamap_destroy(gx->gx_dmatag, gx->gx_cdata.gx_rx_map[i]); + if (gx->gx_cdata.gx_rx_map[i]) + bus_dmamap_destroy(gx->gx_dmatag, + gx->gx_cdata.gx_rx_map[i]); for (i = 0; i < GX_TX_RING_CNT; i++) - bus_dmamap_destroy(gx->gx_dmatag, gx->gx_cdata.gx_tx_map[i]); + if (gx->gx_cdata.gx_tx_map[i]) + bus_dmamap_destroy(gx->gx_dmatag, + gx->gx_cdata.gx_tx_map[i]); } void |