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authorcinap_lenrek <cinap_lenrek@flatbox.9hal>2012-02-26 20:19:58 +0100
committercinap_lenrek <cinap_lenrek@flatbox.9hal>2012-02-26 20:19:58 +0100
commitcbb83c4fcee19d89d7b4927dcad734af02d24f24 (patch)
tree182afe9de3be841719aba0345b3576400ed28f45 /sys/src/cmd/aux/kbdfs
parent11e38d21c8cd381eb8861b9b0cb7d7f25d68b8b4 (diff)
kbdfs: properly handle zero length write to kbdin
Diffstat (limited to 'sys/src/cmd/aux/kbdfs')
-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: