From nobody Mon Apr 13 17:01:01 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A66DEC4332F for ; Mon, 14 Nov 2022 16:29:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237559AbiKNQ3q (ORCPT ); Mon, 14 Nov 2022 11:29:46 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35526 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237437AbiKNQ3i (ORCPT ); Mon, 14 Nov 2022 11:29:38 -0500 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 85F73E53; Mon, 14 Nov 2022 08:29:37 -0800 (PST) From: John Ogness DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1668443375; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=MpXDwx4HKdMdBWDyluBjDSAFdjedUOkxkf204NlGPAs=; b=ZIb+4NiGcX3L5i14ZL3n7tyukxCFrzAaN2u/yt52dY0OinERwz3VqBV0iF7GolWDeFJnsS svoW/OdbNhOb7rb654aqbqcDtFwbYfHWhVZ2ceuMPMcmhjv0V1q3gI9oTYPoEvd8jv81b2 ma9pcNTXKnS70k2gFZOc7Mia1+4plCCQeNOoytXM9nVFKXzKRZtPhuY59fzFOSCKq0RZRA poyjWM9clrOP4N2sx47bznvDPqWcHfs5npYE93Qb0Y0jv9sBxSYz56D2YmtmCZohhyLeYI KMrf2UiGEmrv9Y3gYhZPaxYcx475ZwaukWQ0CpuTNgN1i+6jxNyGMVDu29ZVDQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1668443375; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=MpXDwx4HKdMdBWDyluBjDSAFdjedUOkxkf204NlGPAs=; b=rHBzMhUuyyCGljjYgo6M9g2z9ptIJHtaTE0co9JJYi84qxrRS2zWgGLSRMhVC57vB7U60l V2qJLfb/YvGXv+AA== To: Petr Mladek Cc: Sergey Senozhatsky , Steven Rostedt , Thomas Gleixner , linux-kernel@vger.kernel.org, Jason Wessel , Daniel Thompson , Douglas Anderson , Greg Kroah-Hartman , Jiri Slaby , kgdb-bugreport@lists.sourceforge.net, linux-serial@vger.kernel.org Subject: [PATCH printk v4 01/39] serial: kgdboc: Lock console list in probe function Date: Mon, 14 Nov 2022 17:34:54 +0106 Message-Id: <20221114162932.141883-2-john.ogness@linutronix.de> In-Reply-To: <20221114162932.141883-1-john.ogness@linutronix.de> References: <20221114162932.141883-1-john.ogness@linutronix.de> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Thomas Gleixner Unprotected list walks are not necessarily safe. Signed-off-by: Thomas Gleixner Signed-off-by: John Ogness Reviewed-by: Greg Kroah-Hartman Reviewed-by: Douglas Anderson Reviewed-by: Sergey Senozhatsky Reviewed-by: Petr Mladek Reviewed-by: Daniel Thompson --- drivers/tty/serial/kgdboc.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/tty/serial/kgdboc.c b/drivers/tty/serial/kgdboc.c index 7aa37be3216a..e76f0186c335 100644 --- a/drivers/tty/serial/kgdboc.c +++ b/drivers/tty/serial/kgdboc.c @@ -193,6 +193,7 @@ static int configure_kgdboc(void) if (!p) goto noconfig; =20 + console_lock(); for_each_console(cons) { int idx; if (cons->device && cons->device(cons, &idx) =3D=3D p && @@ -201,6 +202,7 @@ static int configure_kgdboc(void) break; } } + console_unlock(); =20 kgdb_tty_driver =3D p; kgdb_tty_line =3D tty_line; --=20 2.30.2