From mboxrd@z Thu Jan 1 00:00:00 1970 From: SF Markus Elfring Subject: [PATCH 1/6] mfd: twl-core: Return directly after a failed platform_device_alloc() in add_numbered_child() Date: Sun, 26 Jun 2016 15:45:40 +0200 Message-ID: References: <566ABCD9.1060404@users.sourceforge.net> <5682D228.7070902@users.sourceforge.net> <20160111082922.GB14104@x1> <05b7db2a-437a-60ac-d289-71d2150e7f5f@users.sourceforge.net> <20160608111442.GB14888@dell> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: kernel-janitors-owner@vger.kernel.org To: Lee Jones , Tony Lindgren , linux-omap@vger.kernel.org Cc: LKML , kernel-janitors@vger.kernel.org, Julia Lawall List-Id: linux-omap@vger.kernel.org From: Markus Elfring Date: Sun, 26 Jun 2016 12:25:36 +0200 The platform_device_put() function was called in one case by the add_numbered_child() function during error handling even if the passed variable "pdev" contained a null pointer. Return directly in this case. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring --- drivers/mfd/twl-core.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c index 831696e..9458c6d 100644 --- a/drivers/mfd/twl-core.c +++ b/drivers/mfd/twl-core.c @@ -622,11 +622,8 @@ add_numbered_child(unsigned mod_no, const char *name, int num, twl = &twl_priv->twl_modules[sid]; pdev = platform_device_alloc(name, num); - if (!pdev) { - dev_dbg(&twl->client->dev, "can't alloc dev\n"); - status = -ENOMEM; - goto err; - } + if (!pdev) + return ERR_PTR(-ENOMEM); pdev->dev.parent = &twl->client->dev; -- 2.9.0