diff options
| author | mycroft <mycroft@NetBSD.org> | 1993-10-16 03:55:59 +0000 |
|---|---|---|
| committer | mycroft <mycroft@NetBSD.org> | 1993-10-16 03:55:59 +0000 |
| commit | c73d85d3418023209d7c6d1a9d8bfa9df2d16724 (patch) | |
| tree | 8e441bc6e66901809603127189a4717ff6e1097c /sys/dev | |
| parent | 1016b2b6268363515eaf9ebc6e92f2ade90c6258 (diff) | |
Panic if DMA with odd length attempted on a 16-bit channel.
Diffstat (limited to 'sys/dev')
| -rw-r--r-- | sys/dev/isa/isadma.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/dev/isa/isadma.c b/sys/dev/isa/isadma.c index c1481bba203..9a9421df1cd 100644 --- a/sys/dev/isa/isadma.c +++ b/sys/dev/isa/isadma.c @@ -35,7 +35,7 @@ * SUCH DAMAGE. * * from: @(#)isa.c 7.2 (Berkeley) 5/13/91 - * $Id: isadma.c,v 1.1 1993/10/14 05:22:57 mycroft Exp $ + * $Id: isadma.c,v 1.2 1993/10/16 03:55:59 mycroft Exp $ */ /* @@ -123,7 +123,7 @@ at_dma(read, addr, nbytes, chan) if (chan > 7 || (chan < 4 && nbytes > (1<<16)) || - (chan >= 4 && (nbytes > (1<<17) || (u_int)addr & 1))) + (chan >= 4 && (nbytes > (1<<17) || nbytes & 1 || (u_int)addr & 1))) panic("at_dma: impossible request"); if (at_dma_rangecheck((vm_offset_t)addr, nbytes, chan)) { |
