From patchwork Tue Feb 9 03:30:30 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jarkko Sakkinen X-Patchwork-Id: 580617 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.sourceforge.net (lists.sourceforge.net [216.34.181.88]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 493FE14090A for ; Tue, 9 Feb 2016 14:31:00 +1100 (AEDT) Received: from localhost ([127.0.0.1] helo=sfs-ml-2.v29.ch3.sourceforge.com) by sfs-ml-2.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1aSz0s-00089M-9Q; Tue, 09 Feb 2016 03:30:50 +0000 Received: from sog-mx-1.v43.ch3.sourceforge.com ([172.29.43.191] helo=mx.sourceforge.net) by sfs-ml-2.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1aSz0r-00089H-As for tpmdd-devel@lists.sourceforge.net; Tue, 09 Feb 2016 03:30:49 +0000 X-ACL-Warn: Received: from mga01.intel.com ([192.55.52.88]) by sog-mx-1.v43.ch3.sourceforge.com with esmtp (Exim 4.76) id 1aSz0q-0002YY-BM for tpmdd-devel@lists.sourceforge.net; Tue, 09 Feb 2016 03:30:49 +0000 Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga101.fm.intel.com with ESMTP; 08 Feb 2016 19:30:42 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.22,418,1449561600"; d="scan'208";a="911290336" Received: from pcartwri-mobl3.ger.corp.intel.com (HELO localhost) ([10.252.11.102]) by fmsmga002.fm.intel.com with ESMTP; 08 Feb 2016 19:30:40 -0800 From: Jarkko Sakkinen To: Peter Huewe Date: Tue, 9 Feb 2016 05:30:30 +0200 Message-Id: <1454988630-27942-1-git-send-email-jarkko.sakkinen@linux.intel.com> X-Mailer: git-send-email 2.7.0 X-Spam-Score: -0.3 (/) X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. See http://spamassassin.org/tag/ for more details. -0.3 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain X-Headers-End: 1aSz0q-0002YY-BM Cc: stable@vger.kernel.org, tpmdd-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org Subject: [tpmdd-devel] [PATCH] tpm: fix the cleanup of struct tpm_chip X-BeenThere: tpmdd-devel@lists.sourceforge.net X-Mailman-Version: 2.1.9 Precedence: list List-Id: Tpm Device Driver maintainance List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: tpmdd-devel-bounces@lists.sourceforge.net If the initialization fails before tpm_chip_register(), put_device() will be not called, which causes release callback not to be called. This patch fixes the issue by adding put_device() to devres list of the parent device. Fixes: 313d21eeab ("tpm: device class for tpm") Signed-off-by: Jarkko Sakkinen cc: stable@vger.kernel.org Reviewed-by: Jason Gunthorpe --- drivers/char/tpm/tpm-chip.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/char/tpm/tpm-chip.c b/drivers/char/tpm/tpm-chip.c index 1a9dcee..ea904d1 100644 --- a/drivers/char/tpm/tpm-chip.c +++ b/drivers/char/tpm/tpm-chip.c @@ -136,6 +136,8 @@ struct tpm_chip *tpmm_chip_alloc(struct device *dev, chip->cdev.owner = chip->pdev->driver->owner; chip->cdev.kobj.parent = &chip->dev.kobj; + devm_add_action(dev, (void (*)(void *)) put_device, &chip->dev); + return chip; } EXPORT_SYMBOL_GPL(tpmm_chip_alloc);