From 3a62e5630748d788166a50ed34b7f0dc6d43a5ee Mon Sep 17 00:00:00 2001
From: Russ Cox <rsc@swtch.com>
Date: Mon, 13 Jan 2020 19:30:02 -0500
Subject: lib9: do not fetch disk size for character devices

Real disk devices should be block devices anyway.
One user reported the disksize check causing a
system reboot during vac of a tree with an "interesting"
device.

Fixes #103.
---
 src/lib9/_p9dir.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/lib9')

diff --git a/src/lib9/_p9dir.c b/src/lib9/_p9dir.c
index 0fb3410e..58c63573 100644
--- a/src/lib9/_p9dir.c
+++ b/src/lib9/_p9dir.c
@@ -230,7 +230,7 @@ _p9dir(struct stat *lst, struct stat *st, char *name, Dir *d, char **str, char *
 			d->qid.path = ('c'<<16)|st->st_rdev;
 		}
 		/* fetch real size for disks */
-		if(S_ISBLK(lst->st_mode) || S_ISCHR(lst->st_mode)){
+		if(S_ISBLK(lst->st_mode)){
 			if((fd = open(name, O_RDONLY)) >= 0){
 				d->length = disksize(fd, st);
 				close(fd);
-- 
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