Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754025AbaKAW4w (ORCPT ); Sat, 1 Nov 2014 18:56:52 -0400 Received: from shadbolt.e.decadent.org.uk ([88.96.1.126]:60097 "EHLO shadbolt.e.decadent.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751496AbaKAWj1 (ORCPT ); Sat, 1 Nov 2014 18:39:27 -0400 Content-Type: text/plain; charset="UTF-8" Content-Disposition: inline Content-Transfer-Encoding: 8bit MIME-Version: 1.0 From: Ben Hutchings To: linux-kernel@vger.kernel.org, stable@vger.kernel.org CC: akpm@linux-foundation.org, "Anthony Harivel" , "Boris Brezillon" , "Marc Kleine-Budde" , "David Dueck" Date: Sat, 01 Nov 2014 22:28:03 +0000 Message-ID: X-Mailer: LinuxStableQueue (scripts by bwh) Subject: [PATCH 3.2 065/102] can: at91_can: add missing prepare and unprepare of the clock In-Reply-To: X-SA-Exim-Connect-IP: 192.168.4.249 X-SA-Exim-Mail-From: ben@decadent.org.uk X-SA-Exim-Scanned: No (on shadbolt.decadent.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.2.64-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: David Dueck commit e77980e50bc2850599d4d9c0192b67a9ffd6daac upstream. In order to make the driver work with the common clock framework, this patch converts the clk_enable()/clk_disable() to clk_prepare_enable()/clk_disable_unprepare(). While there, add the missing error handling. Signed-off-by: David Dueck Signed-off-by: Anthony Harivel Acked-by: Boris Brezillon Signed-off-by: Marc Kleine-Budde Signed-off-by: Ben Hutchings --- drivers/net/can/at91_can.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) --- a/drivers/net/can/at91_can.c +++ b/drivers/net/can/at91_can.c @@ -1115,7 +1115,9 @@ static int at91_open(struct net_device * struct at91_priv *priv = netdev_priv(dev); int err; - clk_enable(priv->clk); + err = clk_prepare_enable(priv->clk); + if (err) + return err; /* check or determine and set bittime */ err = open_candev(dev); @@ -1139,7 +1141,7 @@ static int at91_open(struct net_device * out_close: close_candev(dev); out: - clk_disable(priv->clk); + clk_disable_unprepare(priv->clk); return err; } @@ -1156,7 +1158,7 @@ static int at91_close(struct net_device at91_chip_stop(dev, CAN_STATE_STOPPED); free_irq(dev->irq, dev); - clk_disable(priv->clk); + clk_disable_unprepare(priv->clk); close_candev(dev); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/