shithub: riscv

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fix broken kbdproc buffering

--- a/sys/src/cmd/rio/rio.c

+++ b/sys/src/cmd/rio/rio.c

@@ -1232,7 +1232,7 @@

 			Rune r;

 			e = buf + sizeof(buf);

-			if((n = read(fd, p, e-p)) < 0)

+			if((n = read(fd, p, e-p)) <= 0)

 				break;

 			e = p + n;

 			while(p < e && fullrune(p, e - p)){

@@ -1243,10 +1243,9 @@

 				}

 			}

 			n = e - p;

-			if(n > 0){

+			if(n > 0)

 				memmove(buf, p, n);

-				p = buf + n;

-			}

+			p = buf + n;

 		}

 		close(fd);

 	}