Module Name:    src
Committed By:   mlelstv
Date:           Sun Jun 13 10:01:43 UTC 2021

Modified Files:
        src/sys/dev: vnd.c

Log Message:
Fail to open read-write when created read-only.


To generate a diff of this commit:
cvs rdiff -u -r1.280 -r1.281 src/sys/dev/vnd.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/sys/dev/vnd.c
diff -u src/sys/dev/vnd.c:1.280 src/sys/dev/vnd.c:1.281
--- src/sys/dev/vnd.c:1.280	Sun Apr 11 18:18:39 2021
+++ src/sys/dev/vnd.c	Sun Jun 13 10:01:43 2021
@@ -1,4 +1,4 @@
-/*	$NetBSD: vnd.c,v 1.280 2021/04/11 18:18:39 mlelstv Exp $	*/
+/*	$NetBSD: vnd.c,v 1.281 2021/06/13 10:01:43 mlelstv Exp $	*/
 
 /*-
  * Copyright (c) 1996, 1997, 1998, 2008, 2020 The NetBSD Foundation, Inc.
@@ -91,7 +91,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: vnd.c,v 1.280 2021/04/11 18:18:39 mlelstv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: vnd.c,v 1.281 2021/06/13 10:01:43 mlelstv Exp $");
 
 #if defined(_KERNEL_OPT)
 #include "opt_vnd.h"
@@ -364,6 +364,11 @@ vndopen(dev_t dev, int flags, int mode, 
 		goto done;
 	}
 
+	if ((flags & FWRITE) && (sc->sc_flags & VNF_READONLY)) {
+		error = EROFS;
+		goto done;
+	}
+
 	if (sc->sc_flags & VNF_INITED) {
 		if ((sc->sc_dkdev.dk_openmask & ~(1<<RAW_PART)) != 0) {
 			/*

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