From patchwork Sat Apr 11 12:09:58 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 228051 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EB42BC2BBC7 for ; Sat, 11 Apr 2020 12:22:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BA52C206A1 for ; Sat, 11 Apr 2020 12:22:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1586607760; bh=cxaqw+gj13L48qPCR+g9Lk8enKGNLTboZwEzcZD5KLs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=CnRzODQkbdeF8nXXm3OfV+8CPQS3kZEauQUuCrnMYVVroe+kn8oqAw3/1QetkLYv0 A9jc9+es+0ceYmKaKjvWhBUvmWQlZw3yZ1thKHlnNUWLaJ7K5TouYWW8SdfKkt0Sbg I9bocP1+4GQ9zNsgPgHSZNKteYHOe3EUdc0Sc5Xk= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729093AbgDKMUy (ORCPT ); Sat, 11 Apr 2020 08:20:54 -0400 Received: from mail.kernel.org ([198.145.29.99]:57032 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728823AbgDKMUx (ORCPT ); Sat, 11 Apr 2020 08:20:53 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 614DE20644; Sat, 11 Apr 2020 12:20:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1586607653; bh=cxaqw+gj13L48qPCR+g9Lk8enKGNLTboZwEzcZD5KLs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ORXcuFlAOB2l1K4SCcs7k3V52C9bxxzKlV4toDvxxOdbLls+5lXaMA13mAo0dt3Wr /UtTag868FVw3a1FR5zl+CEIifI5aP47mkYfuMYFoBiP24Fnde3+9D1HnKa2odN0vp r4IPQTL27WkFUwJyG6QTxHj8AbytzFvHbqfGwch4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, PrasannaKumar Muralidharan , Martin Kaiser , Herbert Xu Subject: [PATCH 5.6 21/38] hwrng: imx-rngc - fix an error path Date: Sat, 11 Apr 2020 14:09:58 +0200 Message-Id: <20200411115502.003592664@linuxfoundation.org> X-Mailer: git-send-email 2.26.0 In-Reply-To: <20200411115459.324496182@linuxfoundation.org> References: <20200411115459.324496182@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Martin Kaiser commit 47a1f8e8b3637ff5f7806587883d7d94068d9ee8 upstream. Make sure that the rngc interrupt is masked if the rngc self test fails. Self test failure means that probe fails as well. Interrupts should be masked in this case, regardless of the error. Cc: stable@vger.kernel.org Fixes: 1d5449445bd0 ("hwrng: mx-rngc - add a driver for Freescale RNGC") Reviewed-by: PrasannaKumar Muralidharan Signed-off-by: Martin Kaiser Signed-off-by: Herbert Xu Signed-off-by: Greg Kroah-Hartman --- drivers/char/hw_random/imx-rngc.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/drivers/char/hw_random/imx-rngc.c +++ b/drivers/char/hw_random/imx-rngc.c @@ -105,8 +105,10 @@ static int imx_rngc_self_test(struct imx return -ETIMEDOUT; } - if (rngc->err_reg != 0) + if (rngc->err_reg != 0) { + imx_rngc_irq_mask_clear(rngc); return -EIO; + } return 0; }