From patchwork Fri May 13 09:31:32 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Perrot X-Patchwork-Id: 9089741 Return-Path: X-Original-To: patchwork-linux-spi@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 620C8BF29F for ; Fri, 13 May 2016 09:31:45 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 50E1E20218 for ; Fri, 13 May 2016 09:31:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6E4F0201FE for ; Fri, 13 May 2016 09:31:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752157AbcEMJbm (ORCPT ); Fri, 13 May 2016 05:31:42 -0400 Received: from mail-wm0-f66.google.com ([74.125.82.66]:33094 "EHLO mail-wm0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751849AbcEMJbm (ORCPT ); Fri, 13 May 2016 05:31:42 -0400 Received: by mail-wm0-f66.google.com with SMTP id r12so2516799wme.0 for ; Fri, 13 May 2016 02:31:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:from:to:cc:subject:date:message-id; bh=UOG11Sxb2EzxVpyoKIpFeEFRPkDAbO0hETFrAEUHQ3Y=; b=mLO0T+64gVDXZiENxcpcUNro9vsnoiJDvey9Ha6WAuXznYyT8vCfBl/8zAZ5lNjIDF aODyZgnIPbqCAkm5uzosYpkeyEpJAA3d5+TxWEbnuRSQMDJpbi80QuP2gmZ6jOqctmr7 fkjwQIr9QQBP7LG8BVH9UeSs5nKROKZt6fWWbeRr8LJXkhFefNeI6cfVltVPRRcROugy ksbE7udtjRP8deG6jrb09jYJP1m3O3NJLc5q0WOZT8+7bxc6NSQDhrfybuD0vApG2UkK maWKglXlTq8+NJ5twCIR3mpglk331DCHJgCU2v+u5zpmdAjAtMx2Vc9hRp57OWhaUVKk MCYw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id; bh=UOG11Sxb2EzxVpyoKIpFeEFRPkDAbO0hETFrAEUHQ3Y=; b=I5IE5TasXzgzM1RN7n+0FXg5nk5EaKZjWGR2MTW6zQMha54Pp2FeJHKqPPneChAq+G SWVAckdp+p1D+9NicUm5VZz2Yqo7DD96hzsNKsgkvrmKr9OBSNZTROH2cnUmFc2DZCxb sTdUSzt12LWGnhPKB9j1UpM18eUL7KOgDg37umgp532aS1v+dWbx5C+5/x2HhJfRCiIb r5sdUW+wWERQG/c9agj7zf3YSbW3RG3o5jY1YrAcRGW81EK11t7uviyGwfEeTFzv42dG kO8/3R5IuVY4M0E+Hjb+KavLuIzSAXR41mSOZ8BcKwgilRqQeaf+UVcsrJJPcr/oCRe3 Ja3Q== X-Gm-Message-State: AOPr4FXAqDpliX0l4BKdipeMlUknpWdKGIN4Nugwbe7SQ2FHtU/r4q/sYWKOaf1OIR0ZEA== X-Received: by 10.28.215.197 with SMTP id o188mr2738107wmg.14.1463131900652; Fri, 13 May 2016 02:31:40 -0700 (PDT) Received: from sgxcmp131.sigfox.io ([217.114.201.133]) by smtp.gmail.com with ESMTPSA id a75sm2310271wme.18.2016.05.13.02.31.39 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 13 May 2016 02:31:39 -0700 (PDT) From: Thomas Perrot To: linux-spi@vger.kernel.org Cc: broonie@kernel.org, Thomas Perrot Subject: [PATCH] spi: fix __spi_pump_messages deadlock Date: Fri, 13 May 2016 11:31:32 +0200 Message-Id: <1463131892-5392-1-git-send-email-thomas.perrot@tupi.fr> X-Mailer: git-send-email 2.1.4 Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org X-Spam-Status: No, score=-8.2 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,RP_MATCHES_RCVD,T_DKIM_INVALID,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Thomas Perrot --- drivers/spi/spi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 0239b45..785080a 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -1192,7 +1192,7 @@ static void __spi_pump_messages(struct spi_master *master, bool in_kthread, } out: - if (!bus_locked) + if (bus_locked) mutex_unlock(&master->bus_lock_mutex); /* Prod the scheduler in case transfer_one() was busy waiting */