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-rw-r--r--sys/ia64/isa/isa_dma.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/ia64/isa/isa_dma.c b/sys/ia64/isa/isa_dma.c
index 0943d83..0f4fddb8 100644
--- a/sys/ia64/isa/isa_dma.c
+++ b/sys/ia64/isa/isa_dma.c
@@ -331,7 +331,7 @@ isa_dmastart(int flags, caddr_t addr, u_int nbytes, int chan)
printf("isa_dmastart: channel %d busy\n", chan);
#endif
- if (!dma_tag || !dma_map[chan])
+ if (!dma_tag[chan] || !dma_map[chan])
panic("isa_dmastart: called without isa_dma_init");
dma_busy |= (1 << chan);
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