[PATCH 4.0 56/60] coredump: accept any write method

[Greg Kroah-Hartman]

4.0-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Al Viro <viro@xxxxxxxxxxxxxxxxxx>

commit 86cc05840a0da1afcb6b8151b53f3b606457c91b upstream.

Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 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;


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