From de4ddf9cc252843f6f77e3bbadc864e98f79526e Mon Sep 17 00:00:00 2001
From: Keith M Wesolowski <wesolows@foobazco.org>
Date: Wed, 11 Jun 2014 18:35:26 +0000
Subject: 5405 panic when mounting a lofi device from a ro filesystem Reviewed
 by: Robert Mustacchi <rm@joyent.com> Reviewed by: Garrett D'Amore
 <garrett@damore.org> Reviewed by: Igor Kozhukhov <ikozhukhov@gmail.com>
 Reviewed by: Josef 'Jeff' Sipek <josef.sipek@nexenta.com> Approved by: Dan
 McDonald <danmcd@omniti.com>

---
 usr/src/uts/common/fs/hsfs/hsfs_vnops.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'usr/src')

diff --git a/usr/src/uts/common/fs/hsfs/hsfs_vnops.c b/usr/src/uts/common/fs/hsfs/hsfs_vnops.c
index 66d4b6cfef..5375f883ae 100644
--- a/usr/src/uts/common/fs/hsfs/hsfs_vnops.c
+++ b/usr/src/uts/common/fs/hsfs/hsfs_vnops.c
@@ -1585,8 +1585,7 @@ hsfs_getpage(
 
 	/* does not support write */
 	if (rw == S_WRITE) {
-		panic("write attempt on READ ONLY HSFS");
-		/*NOTREACHED*/
+		return (EROFS);
 	}
 
 	if (vp->v_flag & VNOMAP) {
@@ -1798,6 +1797,9 @@ hsfs_map(
 	if (vp->v_flag & VNOMAP)
 		return (ENOSYS);
 
+	if (prot & PROT_WRITE)
+		return (ENOSYS);
+
 	if (off > HS_MAXFILEOFF || off < 0 ||
 	    (off + len) < 0 || (off + len) > HS_MAXFILEOFF)
 		return (ENXIO);
-- 
cgit v1.2.3