this should be applied after russ' change to sdupatepart.
fix sdfakescsi to use the correct inquiry data.  one liner.

Reference: /n/sources/patch/applied/devsd-fakeinquiry
Date: Mon May  7 16:31:59 CES 2007
Signed-off-by: quanstro@quanstro.net

--- /sys/src/9/port/devsd.c	Mon May  7 16:31:18 2007
+++ /sys/src/9/port/devsd.c	Mon May  7 16:31:09 2007
@@ -850,10 +850,8 @@
 	r->dlen = n;
 
 	if(waserror()){
-		if(data != nil){
-			sdfree(data);
-			r->data = nil;
-		}
+		sdfree(data);
+		r->data = nil;
 		nexterror();
 	}
 
@@ -862,10 +860,8 @@
 
 	if(!r->write && r->rlen > 0)
 		memmove(a, data, r->rlen);
-	if(data != nil){
-		sdfree(data);
-		r->data = nil;
-	}
+	sdfree(data);
+	r->data = nil;
 	poperror();
 
 	return r->rlen;
@@ -991,7 +987,7 @@
 		else
 			len = sizeof unit->inquiry;
 		if(r->data && r->dlen >= len){
-			memmove(r->data, r->sense, len);
+			memmove(r->data, unit->inquiry, len);
 			r->rlen = len;
 		}
 		return sdsetsense(r, SDok, 0, 0, 0);
@@ -1322,7 +1318,10 @@
 			error(Ebadusefd);
 
 		case Rawdata:
+			if(unit->state != Rawdata)
+				error(Ebadusefd);
 			unit->state = Rawstatus;
+
 			unit->req->write = 1;
 			n = sdrio(unit->req, a, n);
 		}