upas/fs: checkfid() might be called with uninitialized fid, ignore

2018-11-21 21:48:55 +01:00 · 2018-11-21 21:48:55 +01:00 · 1dcf853fc0
parent 5d2bffc26f
commit 1dcf853fc0
1 changed files with 1 additions and 0 deletions
--- a/sys/src/cmd/upas/fs/fs.c
+++ b/sys/src/cmd/upas/fs/fs.c
@ -1329,6 +1329,7 @@ rwstat(Fid*)
 static Fid*
 checkfid(Fid *f)
 {
+	if(f->busy)
 	switch(FILE(f->qid.path)){
 	case Qtop:
 	case Qctl: