Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932457Ab0G3Rf7 (ORCPT ); Fri, 30 Jul 2010 13:35:59 -0400 Received: from kroah.org ([198.145.64.141]:35698 "EHLO coco.kroah.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759400Ab0G3Ree (ORCPT ); Fri, 30 Jul 2010 13:34:34 -0400 X-Mailbox-Line: From gregkh@clark.site Fri Jul 30 10:31:06 2010 Message-Id: <20100730173106.809358749@clark.site> User-Agent: quilt/0.48-11.2 Date: Fri, 30 Jul 2010 10:30:10 -0700 From: Greg KH To: linux-kernel@vger.kernel.org, stable@kernel.org Cc: stable-review@kernel.org, torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Jason Baron Subject: [045/140] dynamic debug: move ddebug_remove_module() down into free_module() In-Reply-To: <20100730173205.GA22581@kroah.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1718 Lines: 56 2.6.33-stable review patch. If anyone has any objections, please let us know. ------------------ From: Jason Baron commit b82bab4bbe9efa7bc7177fc20620fff19bd95484 upstream. The command echo "file ec.c +p" >/sys/kernel/debug/dynamic_debug/control causes an oops. Move the call to ddebug_remove_module() down into free_module(). In this way it should be called from all error paths. Currently, we are missing the remove if the module init routine fails. Signed-off-by: Jason Baron Reported-by: Thomas Renninger Tested-by: Thomas Renninger Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman --- kernel/module.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/kernel/module.c +++ b/kernel/module.c @@ -720,7 +720,6 @@ SYSCALL_DEFINE2(delete_module, const cha mutex_lock(&module_mutex); /* Store the name of the last unloaded module for diagnostic purposes */ strlcpy(last_unloaded_module, mod->name, sizeof(last_unloaded_module)); - ddebug_remove_module(mod->name); free_module(mod); out: @@ -1383,6 +1382,9 @@ static void free_module(struct module *m remove_sect_attrs(mod); mod_kobject_remove(mod); + /* Remove dynamic debug info */ + ddebug_remove_module(mod->name); + /* Arch-specific cleanup. */ module_arch_cleanup(mod); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/