From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from nblzone-211-213.nblnetworks.fi ([83.145.211.213]:50522 "EHLO hillosipuli.retiisi.org.uk" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751355AbaJBIql (ORCPT ); Thu, 2 Oct 2014 04:46:41 -0400 From: Sakari Ailus To: linux-media@vger.kernel.org Cc: laurent.pinchart@ideasonboard.com Subject: [PATCH v2 01/18] smiapp: Take mutex during PLL update in sensor initialisation Date: Thu, 2 Oct 2014 11:45:51 +0300 Message-Id: <1412239568-8524-2-git-send-email-sakari.ailus@iki.fi> In-Reply-To: <1412239568-8524-1-git-send-email-sakari.ailus@iki.fi> References: <1412239568-8524-1-git-send-email-sakari.ailus@iki.fi> Sender: linux-media-owner@vger.kernel.org List-ID: From: Sakari Ailus The mutex does not serialise anything in this case but avoids a lockdep warning from the control framework. Signed-off-by: Sakari Ailus --- drivers/media/i2c/smiapp/smiapp-core.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/media/i2c/smiapp/smiapp-core.c b/drivers/media/i2c/smiapp/smiapp-core.c index 932ed9b..6174a59 100644 --- a/drivers/media/i2c/smiapp/smiapp-core.c +++ b/drivers/media/i2c/smiapp/smiapp-core.c @@ -2677,7 +2677,9 @@ static int smiapp_registered(struct v4l2_subdev *subdev) pll->flags |= SMIAPP_PLL_FLAG_NO_OP_CLOCKS; pll->scale_n = sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN]; + mutex_lock(&sensor->mutex); rval = smiapp_update_mode(sensor); + mutex_unlock(&sensor->mutex); if (rval) { dev_err(&client->dev, "update mode failed\n"); goto out_nvm_release; -- 1.7.10.4