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devbridge: fix

--- a/sys/src/9/port/devbridge.c

+++ b/sys/src/9/port/devbridge.c

@@ -780,21 +780,15 @@

 	Centry *ce;

 	char c;

-	buf = smalloc(n);

 	qlock(b);

-	if(waserror()) {

-		qunlock(b);

-		free(buf);

-		nexterror();

-	}

 	sec = TK2SEC(m->ticks);

 	n = 0;

 	for(i=0; i<CacheSize; i++)

 		if(b->cache[i].expire != 0)

 			n++;

-	

 	n *= 51;	// change if print format is changed

 	n += 10;	// some slop at the end

+	buf = smalloc(n);

 	p = buf;

 	ep = buf + n;

 	ce = b->cache;

@@ -807,7 +801,6 @@

 			ce->port, ce->src, ce->dst, ce->expire+off, c);

 	}

 	*p = 0;

-	poperror();

 	qunlock(b);

 	return buf;

 }

-- 

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