From patchwork Fri May 11 15:06:16 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe JAILLET X-Patchwork-Id: 49446 Received: from vger.kernel.org ([209.132.180.67]) by www.linuxtv.org with esmtp (Exim 4.84_2) (envelope-from ) id 1fH9dU-0002nV-JZ; Fri, 11 May 2018 15:07:08 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753511AbeEKPGj (ORCPT + 1 other); Fri, 11 May 2018 11:06:39 -0400 Received: from smtp01.smtpout.orange.fr ([80.12.242.123]:28903 "EHLO smtp.smtpout.orange.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753261AbeEKPGi (ORCPT ); Fri, 11 May 2018 11:06:38 -0400 Received: from ubuntu-CJ.home ([86.244.116.1]) by mwinf5d36 with ME id l36B1x00C01t9Ri0336cb9; Fri, 11 May 2018 17:06:36 +0200 X-ME-Helo: ubuntu-CJ.home X-ME-Auth: Y2hyaXN0b3BoZS5qYWlsbGV0QHdhbmFkb28uZnI= X-ME-Date: Fri, 11 May 2018 17:06:36 +0200 X-ME-IP: 86.244.116.1 From: Christophe JAILLET To: alan@linux.intel.com, sakari.ailus@linux.intel.com, mchehab@kernel.org, gregkh@linuxfoundation.org, andriy.shevchenko@linux.intel.com, chen.chenchacha@foxmail.com, keescook@chromium.org, arvind.yadav.cs@gmail.com Cc: linux-media@vger.kernel.org, devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org, Christophe JAILLET Subject: [PATCH 1/3] media: staging: atomisp: Return an error code in case of error in 'lm3554_probe()' Date: Fri, 11 May 2018 17:06:16 +0200 Message-Id: <2eff9a8d6d67b60aed87277ab4f8b48b2251d559.1526048313.git.christophe.jaillet@wanadoo.fr> X-Mailer: git-send-email 2.17.0 In-Reply-To: References: In-Reply-To: References: Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org If 'v4l2_ctrl_handler_init()' fails, we go to the error handling path, do some clean-up and return err, which is known to be 0 (i.e. success). Axe the 'ret' variable and use 'err' directly in order to return the error code instead. Also remove the initialization of 'err' which was hiding this issue. Signed-off-by: Christophe JAILLET --- drivers/staging/media/atomisp/i2c/atomisp-lm3554.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/staging/media/atomisp/i2c/atomisp-lm3554.c b/drivers/staging/media/atomisp/i2c/atomisp-lm3554.c index 7098bf317f16..723fa74ff815 100644 --- a/drivers/staging/media/atomisp/i2c/atomisp-lm3554.c +++ b/drivers/staging/media/atomisp/i2c/atomisp-lm3554.c @@ -852,10 +852,9 @@ static void *lm3554_platform_data_func(struct i2c_client *client) static int lm3554_probe(struct i2c_client *client) { - int err = 0; + int err; struct lm3554 *flash; unsigned int i; - int ret; flash = kzalloc(sizeof(*flash), GFP_KERNEL); if (!flash) @@ -868,10 +867,9 @@ static int lm3554_probe(struct i2c_client *client) flash->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; flash->mode = ATOMISP_FLASH_MODE_OFF; flash->timeout = LM3554_MAX_TIMEOUT / LM3554_TIMEOUT_STEPSIZE - 1; - ret = - v4l2_ctrl_handler_init(&flash->ctrl_handler, - ARRAY_SIZE(lm3554_controls)); - if (ret) { + err = v4l2_ctrl_handler_init(&flash->ctrl_handler, + ARRAY_SIZE(lm3554_controls)); + if (err) { dev_err(&client->dev, "error initialize a ctrl_handler.\n"); goto fail2; }