12 files changed, 14 insertions(+), 28 deletions(-)

M gnot/devdk.c
M gnot/devmnt.c
M gnot/devproc.c
M gnot/fault.c
M gnot/page.c
M gnot/screen.c
M gnot/sysfile.c
M port/devdk.c
M port/devmnt.c
M port/devproc.c
M port/page.c
M port/sysfile.c

@@ 744,6 744,8 @@ dkstat(Chan *c, char *dp)
 {
 	if(c->qid.path == CHDIR)
 		devstat(c, dp, dkdir, dk[c->dev].lines, devgen);
+	else if(c->qid.path == Dcloneqid)
+		devstat(c, dp, dkdir, 1, devgen);
 	else
 		devstat(c, dp, dksubdir, Nsubdir, streamgen);
 }


@@ 776,7 778,7 @@ dkopen(Chan *c, int omode)
 	case Dcloneqid:
 		dp = &dk[c->dev];
 		/*
-		 *  get an unused device and open it's control file
+		 *  get an unused device and open its control file
 		 */
 		end = &dp->line[dp->lines];
 		for(lp = &dp->line[dp->ncsc+1]; lp < end; lp++){

@@ 469,7 469,6 @@ mntclunk(Chan *c, int t)
 	Mnthdr *mh;
 	MntQ *q;
 	int waserr;
-int ne = u->nerrlab;
 
 	m = mntdev(c->dev, 0);
 	mh = mhalloc();

@@ 371,6 371,7 @@ procwrite(Chan *c, void *va, long n)
 	if(c->qid.path & CHDIR)
 		error(Eisdir);
 
+	p = proctab(SLOT(c->qid));
 	/*
 	 * Special case: don't worry about process, just use remembered group
 	 */


@@ 390,7 391,6 @@ procwrite(Chan *c, void *va, long n)
 		return n;
 	}
 
-	p = proctab(SLOT(c->qid));
 	lock(&p->debug);
 	if(waserror()){
 		unlock(&p->debug);

@@ 61,6 61,7 @@ fault(Ureg *ur, FFrame *f)
 	}
 	insyscall = u->p->insyscall;
 	u->p->insyscall = 1;
+	addr = 0;	/* set */
 	if(f->ssw & DF)
 		addr = f->addr;
 	else if(FORMAT(ur) == 0xA){

@@ 306,7 306,7 @@ loop:
 			o->mqid = c->mqid;
 			incref(c);
 		}else{
-			o->type = -1;
+			o->type = ~0;
 			o->qid.path = -1;
 			o->qid.vers = 0;
 			o->mqid.path = -1;

@@ 230,6 230,7 @@ duartbaud(int b)
 	int x;
 	Duart *duart = DUARTREG;
 
+	x = 0;		/* set */
 	switch(b){
 	case 38400:
 		x = BD38400;

@@ 29,6 29,7 @@ fdtochan(int fd, int mode)
 {
 	Chan *c;
 
+	c = 0;		/* set */
 	if(fd<0 || NFD<=fd || (c=u->fd[fd])==0)
 		error(Ebadfd);
 	if(mode<0 || c->mode==ORDWR)


@@ 333,16 334,6 @@ sysstat(ulong *arg)
 }
 
 long
-sysaccess(ulong *arg)
-{
-	Chan *c;
-	long mode;
-
-	postnote(u->p, 1, "access is deprecated", NDebug);
-	return 0;
-}
-
-long
 syschdir(ulong *arg)
 {
 	Chan *c;

@@ 744,6 744,8 @@ dkstat(Chan *c, char *dp)
 {
 	if(c->qid.path == CHDIR)
 		devstat(c, dp, dkdir, dk[c->dev].lines, devgen);
+	else if(c->qid.path == Dcloneqid)
+		devstat(c, dp, dkdir, 1, devgen);
 	else
 		devstat(c, dp, dksubdir, Nsubdir, streamgen);
 }


@@ 776,7 778,7 @@ dkopen(Chan *c, int omode)
 	case Dcloneqid:
 		dp = &dk[c->dev];
 		/*
-		 *  get an unused device and open it's control file
+		 *  get an unused device and open its control file
 		 */
 		end = &dp->line[dp->lines];
 		for(lp = &dp->line[dp->ncsc+1]; lp < end; lp++){

@@ 469,7 469,6 @@ mntclunk(Chan *c, int t)
 	Mnthdr *mh;
 	MntQ *q;
 	int waserr;
-int ne = u->nerrlab;
 
 	m = mntdev(c->dev, 0);
 	mh = mhalloc();

@@ 371,6 371,7 @@ procwrite(Chan *c, void *va, long n)
 	if(c->qid.path & CHDIR)
 		error(Eisdir);
 
+	p = proctab(SLOT(c->qid));
 	/*
 	 * Special case: don't worry about process, just use remembered group
 	 */


@@ 390,7 391,6 @@ procwrite(Chan *c, void *va, long n)
 		return n;
 	}
 
-	p = proctab(SLOT(c->qid));
 	lock(&p->debug);
 	if(waserror()){
 		unlock(&p->debug);

@@ 336,7 336,7 @@ loop:
 			o->mqid = c->mqid;
 			incref(c);
 		}else{
-			o->type = -1;
+			o->type = ~0;
 			o->qid = (Qid){~0, ~0};
 			o->mqid = (Qid){~0, ~0};
 			o->mchan = 0;

@@ 29,6 29,7 @@ fdtochan(int fd, int mode)
 {
 	Chan *c;
 
+	c = 0;	/* set */
 	if(fd<0 || NFD<=fd || (c=u->fd[fd])==0)
 		error(Ebadfd);
 	if(mode<0 || c->mode==ORDWR)


@@ 333,16 334,6 @@ sysstat(ulong *arg)
 }
 
 long
-sysaccess(ulong *arg)
-{
-	Chan *c;
-	long mode;
-
-	postnote(u->p, 1, "access is deprecated", NDebug);
-	return 0;
-}
-
-long
 syschdir(ulong *arg)
 {
 	Chan *c;