From patchwork Thu Oct 17 19:22:18 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= X-Patchwork-Id: 1178972 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-pwm-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=pengutronix.de Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 46vJvg2hGjz9sCJ for ; Fri, 18 Oct 2019 06:22:23 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2503468AbfJQTWW (ORCPT ); Thu, 17 Oct 2019 15:22:22 -0400 Received: from metis.ext.pengutronix.de ([85.220.165.71]:57669 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2503454AbfJQTWW (ORCPT ); Thu, 17 Oct 2019 15:22:22 -0400 Received: from pty.hi.pengutronix.de ([2001:67c:670:100:1d::c5]) by metis.ext.pengutronix.de with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1iLBLo-0004v9-45; Thu, 17 Oct 2019 21:22:20 +0200 Received: from ukl by pty.hi.pengutronix.de with local (Exim 4.89) (envelope-from ) id 1iLBLn-00031d-8z; Thu, 17 Oct 2019 21:22:19 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Thierry Reding , Yendapally Reddy Dhananjaya Reddy , Ray Jui , Scott Branden Cc: bcm-kernel-feedback-list@broadcom.com, linux-pwm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de Subject: [PATCH] pwm: bcm-iproc: prevent unloading the driver module while in use Date: Thu, 17 Oct 2019 21:22:18 +0200 Message-Id: <20191017192218.9042-1-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.23.0 MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::c5 X-SA-Exim-Mail-From: ukl@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-pwm@vger.kernel.org Sender: linux-pwm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pwm@vger.kernel.org The owner member of struct pwm_ops must be set to THIS_MODULE to increase the reference count of the module such that the module cannot be removed while its code is in use. Fixes: daa5abc41c80 ("pwm: Add support for Broadcom iProc PWM controller") Signed-off-by: Uwe Kleine-König Reviewed-by: Florian Fainelli --- drivers/pwm/pwm-bcm-iproc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/pwm/pwm-bcm-iproc.c b/drivers/pwm/pwm-bcm-iproc.c index 56c38cfae92c..1f829edd8ee7 100644 --- a/drivers/pwm/pwm-bcm-iproc.c +++ b/drivers/pwm/pwm-bcm-iproc.c @@ -187,6 +187,7 @@ static int iproc_pwmc_apply(struct pwm_chip *chip, struct pwm_device *pwm, static const struct pwm_ops iproc_pwm_ops = { .apply = iproc_pwmc_apply, .get_state = iproc_pwmc_get_state, + .owner = THIS_MODULE, }; static int iproc_pwmc_probe(struct platform_device *pdev)