net/9p: nwname should be an unsigned int

Signed-off-by: Harsh Prateek Bora <harsh@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric VAn Hensbergen <ericvh@gmail.com>

include/net/9p/client.h

@@ -218,8 +218,8 @@ void p9_client_disconnect(struct p9_client *clnt);
 void p9_client_begin_disconnect(struct p9_client *clnt);
 struct p9_fid *p9_client_attach(struct p9_client *clnt, struct p9_fid *afid,
 					char *uname, u32 n_uname, char *aname);
-struct p9_fid *p9_client_walk(struct p9_fid *oldfid, int nwname, char **wnames,
-								int clone);
+struct p9_fid *p9_client_walk(struct p9_fid *oldfid, uint16_t nwname,
+		char **wnames, int clone);
 int p9_client_open(struct p9_fid *fid, int mode);
 int p9_client_fcreate(struct p9_fid *fid, char *name, u32 perm, int mode,
 							char *extension);

net/9p/client.c

@@ -929,15 +929,15 @@ struct p9_fid *p9_client_attach(struct p9_client *clnt, struct p9_fid *afid,
 }
 EXPORT_SYMBOL(p9_client_attach);
 
-struct p9_fid *p9_client_walk(struct p9_fid *oldfid, int nwname, char **wnames,
-	int clone)
+struct p9_fid *p9_client_walk(struct p9_fid *oldfid, uint16_t nwname,
+		char **wnames, int clone)
 {
 	int err;
 	struct p9_client *clnt;
 	struct p9_fid *fid;
 	struct p9_qid *wqids;
 	struct p9_req_t *req;
-	int16_t nwqids, count;
+	uint16_t nwqids, count;
 
 	err = 0;
 	wqids = NULL;
@@ -955,7 +955,7 @@ struct p9_fid *p9_client_walk(struct p9_fid *oldfid, int nwname, char **wnames,
 		fid = oldfid;
 
 
-	P9_DPRINTK(P9_DEBUG_9P, ">>> TWALK fids %d,%d nwname %d wname[0] %s\n",
+	P9_DPRINTK(P9_DEBUG_9P, ">>> TWALK fids %d,%d nwname %ud wname[0] %s\n",
 		oldfid->fid, fid->fid, nwname, wnames ? wnames[0] : NULL);
 
 	req = p9_client_rpc(clnt, P9_TWALK, "ddT", oldfid->fid, fid->fid,

net/9p/protocol.c

@@ -265,7 +265,7 @@ p9pdu_vreadf(struct p9_fcall *pdu, int proto_version, const char *fmt,
 			}
 			break;
 		case 'T':{
-				int16_t *nwname = va_arg(ap, int16_t *);
+				uint16_t *nwname = va_arg(ap, uint16_t *);
 				char ***wnames = va_arg(ap, char ***);
 
 				errcode = p9pdu_readf(pdu, proto_version,
@@ -496,7 +496,7 @@ p9pdu_vwritef(struct p9_fcall *pdu, int proto_version, const char *fmt,
 			}
 			break;
 		case 'T':{
-				int16_t nwname = va_arg(ap, int);
+				uint16_t nwname = va_arg(ap, int);
 				const char **wnames = va_arg(ap, const char **);
 
 				errcode = p9pdu_writef(pdu, proto_version, "w",