devproc: fix syscalltrace read for ratrace

2020-03-05 20:46:01 +01:00 · 2020-03-05 20:46:01 +01:00 · a87c9cfc6c
parent 17136370d8
commit a87c9cfc6c
1 changed files with 2 additions and 1 deletions
--- a/sys/src/9/port/devproc.c
+++ b/sys/src/9/port/devproc.c
@ -1119,9 +1119,10 @@ procread(Chan *c, void *va, long n, vlong off)
 		goto statbufread;

 	case Qsyscall:
-		n = 0;
 		if(p->syscalltrace != nil)
 			n = readstr(offset, va, n, p->syscalltrace);
+		else
+			n = 0;
 		break;

 	case Qnote: