code: drawterm

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fix the way Plan 9 does

--- a/kern/devmnt.c

+++ b/kern/devmnt.c

@@ -220,6 +220,16 @@

 	m->msize = f.msize;

 	unlock(&mntalloc.lk);

+	k = strlen(f.version);

+	if(returnlen > 0){

+		if(returnlen < k)

+			error(Eshort);

+		memmove(version, f.version, k);

+	}

+

+	poperror();	/* msg */

+	free(msg);

+

 	lock(&m->lk);

 	m->queue = 0;

 	m->rip = 0;

@@ -229,18 +239,9 @@

 	m->c = c;

 	unlock(&m->lk);

-	poperror();	/* msg */

 	poperror();	/* c */

 	qunlock(&c->umqlock);

-	k = strlen(f.version);

-	if(returnlen > 0){

-		if(returnlen < k){

-			free(msg);

-			error(Eshort);

-		}

-		memmove(version, f.version, k);

-	}

 	free(msg);

 	return k;

 }