From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1422906Ab3FUNBU (ORCPT ); Fri, 21 Jun 2013 09:01:20 -0400 Received: from mail.free-electrons.com ([94.23.35.102]:54895 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1422719Ab3FUNBS (ORCPT ); Fri, 21 Jun 2013 09:01:18 -0400 From: Thomas Petazzoni To: Arnd Bergmann , Greg Kroah-Hartman Cc: linux-kernel@vger.kernel.org, Samu Onkalo , michael.opdenacker@free-electrons.com, gregory.clement@free-electrons.com, maxime.ripard@free-electrons.com, alexandre.belloni@free-electrons.com Subject: [PATCH] char: misc: assign file->private_data in all cases Date: Fri, 21 Jun 2013 15:01:05 +0200 Message-Id: <1371819665-3882-1-git-send-email-thomas.petazzoni@free-electrons.com> X-Mailer: git-send-email 1.8.1.2 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In fa1f68db6ca ("drivers: misc: pass miscdevice pointer via file private data"), the misc driver infrastructure was changed to assigned file->private_data as a pointer to the 'struct miscdevice' that corresponds to the device being opened. However, this assignment was only done when the misc driver was declaring a driver-specific ->open() operation in its file_operations. This doesn't make sense, as the driver may not necessarily have a custom ->open() operation, and might still be interested in having file->private_data properly set for use in its ->read() and write() operations. Therefore, we move the assignment of file->private_data outside of the condition that tests whether a driver-specific ->open() operation was defined. Signed-off-by: Thomas Petazzoni --- drivers/char/misc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/char/misc.c b/drivers/char/misc.c index 190d442..fd504d3 100644 --- a/drivers/char/misc.c +++ b/drivers/char/misc.c @@ -143,8 +143,8 @@ static int misc_open(struct inode * inode, struct file * file) err = 0; old_fops = file->f_op; file->f_op = new_fops; + file->private_data = c; if (file->f_op->open) { - file->private_data = c; err=file->f_op->open(inode,file); if (err) { fops_put(file->f_op); -- 1.8.1.2