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-rw-r--r--sys/src/cmd/aux/kbdfs/kbdfs.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/src/cmd/aux/kbdfs/kbdfs.c b/sys/src/cmd/aux/kbdfs/kbdfs.c
index 58c4e8bba..90e22484b 100644
--- a/sys/src/cmd/aux/kbdfs/kbdfs.c
+++ b/sys/src/cmd/aux/kbdfs/kbdfs.c
@@ -1114,9 +1114,9 @@ fswrite(Req *r)
case Qkbdin:
p = r->ifcall.data;
n = r->ifcall.count;
- if(n <= 0)
- n = 0;
r->ofcall.count = n;
+ if(n == 0)
+ break;
if(p[n-1] != 0){
/*
* old format as used by bitsy keyboard: