From: ngie <ngie@FreeBSD.org>
Date: Sat, 17 Oct 2015 09:07:53 +0000 (+0000)
Subject: Set dev->fd to -1 when calling cam_close_spec_device with a valid dev->fd
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=8274c9ca5f94449626c9a69121df86e5d6ffeb1e;p=people%2Fjulieng%2Ffreebsd.git

Set dev->fd to -1 when calling cam_close_spec_device with a valid dev->fd
descriptor to avoid trashing valid file descriptors that access dev->fd at a
later point in time

PR: 192671
Submitted by: Scott Ferris <scott.ferris@isilon.com>
MFC after: 1 week
Sponsored by: EMC / Isilon Storage Division
---

diff --git a/lib/libcam/camlib.c b/lib/libcam/camlib.c
index f3202470a0e2..b7024a6d6097 100644
--- a/lib/libcam/camlib.c
+++ b/lib/libcam/camlib.c
@@ -676,8 +676,10 @@ cam_close_spec_device(struct cam_device *dev)
 	if (dev == NULL)
 		return;
 
-	if (dev->fd >= 0)
+	if (dev->fd >= 0) {
 		close(dev->fd);
+		dev->fd = -1;
+	}
 }
 
 char *