releases/4.0.4/coredump-accept-any-write-method.patch

From 86cc05840a0da1afcb6b8151b53f3b606457c91b Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 3 Apr 2015 15:23:17 -0400
Subject: coredump: accept any write method

From: Al Viro <viro@zeniv.linux.org.uk>

commit 86cc05840a0da1afcb6b8151b53f3b606457c91b upstream.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/coredump.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -657,7 +657,7 @@ void do_coredump(const siginfo_t *siginf
 		 */
 		if (!uid_eq(inode->i_uid, current_fsuid()))
 			goto close_fail;
-		if (!cprm.file->f_op->write)
+		if (!(cprm.file->f_mode & FMODE_CAN_WRITE))
 			goto close_fail;
 		if (do_truncate(cprm.file->f_path.dentry, 0, 0, cprm.file))
 			goto close_fail;