From: Len Brown <lenb@kernel.org>
To: Paul Rolland <rol@as2917.net>
Cc: Ingo Molnar <mingo@elte.hu>,
Linus Torvalds <torvalds@linux-foundation.org>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Matthew Garrett <mjg@redhat.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
rol@witbe.net, werner <w.landgraf@ru.ru>,
linux-acpi@vger.kernel.org
Subject: [PATCH] wmi: check find_guid() return value to prevent oops
Date: Wed, 30 Dec 2009 01:19:12 -0500 (EST) [thread overview]
Message-ID: <alpine.LFD.2.00.0912300116430.15839@localhost.localdomain> (raw)
In-Reply-To: <20091228175301.4e89aa65@tux.DEF.witbe.net>
From: rol@as2917.net <Paul Rolland>
Signed-off-by: rol@as2917.net <Paul Rolland>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/platform/x86/wmi.c | 6 ++----
1 files changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c
index 9f93d6c..cc9ad74 100644
--- a/drivers/platform/x86/wmi.c
+++ b/drivers/platform/x86/wmi.c
@@ -492,8 +492,7 @@ wmi_notify_handler handler, void *data)
if (!guid || !handler)
return AE_BAD_PARAMETER;
- find_guid(guid, &block);
- if (!block)
+ if (!find_guid(guid, &block))
return AE_NOT_EXIST;
if (block->handler)
@@ -521,8 +520,7 @@ acpi_status wmi_remove_notify_handler(const char *guid)
if (!guid)
return AE_BAD_PARAMETER;
- find_guid(guid, &block);
- if (!block)
+ if (!find_guid(guid, &block))
return AE_NOT_EXIST;
if (!block->handler)
--
1.6.6.rc4.11.g129a5
next prev parent reply other threads:[~2009-12-30 6:19 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-24 22:00 Linux 2.6.33-rc2 - Merry Christmas Linus Torvalds
2009-12-25 10:27 ` -tip: origin tree boot crash Ingo Molnar
2009-12-25 19:49 ` Dmitry Torokhov
2009-12-26 20:19 ` Len Brown
2009-12-26 20:17 ` Len Brown
2009-12-27 4:20 ` Len Brown
2009-12-28 9:44 ` Ingo Molnar
2009-12-28 12:01 ` Ingo Molnar
2009-12-28 15:02 ` Paul Rolland
2009-12-28 16:15 ` Paul Rolland
2009-12-28 16:53 ` Paul Rolland
2009-12-28 20:17 ` Dmitry Torokhov
2009-12-30 6:14 ` Len Brown
2009-12-30 7:13 ` Paul Rolland
2009-12-30 6:19 ` Len Brown [this message]
2009-12-30 6:21 ` [PATCH] dell-wmi: sys_init_module: 'dell_wmi'->init suspiciously returned 21, it should follow 0/-E convention Len Brown
2009-12-25 13:10 ` Linux 2.6.33-rc2 - Blank screen for Intel KMS Miguel Calleja
2009-12-29 9:50 ` Miguel Calleja
2009-12-29 14:01 ` Rafael J. Wysocki
2009-12-25 20:00 ` Linux 2.6.33-rc2 - Merry Christmas Borislav Petkov
2009-12-25 21:50 ` Borislav Petkov
2009-12-26 6:00 ` Jesse Barnes
2009-12-26 8:02 ` Borislav Petkov
2009-12-26 9:36 ` EHCI resume sysfs duplicates (was: Re: Linux 2.6.33-rc2 - Merry Christmas ...) Borislav Petkov
2009-12-26 9:45 ` drm_vm.c:drm_mmap: possible circular locking dependency detected " Borislav Petkov
2009-12-28 0:40 ` KOSAKI Motohiro
2009-12-30 21:10 ` Linus Torvalds
2009-12-30 21:34 ` Eric W. Biederman
2009-12-30 22:03 ` Linus Torvalds
2009-12-31 8:40 ` Eric W. Biederman
2009-12-31 19:04 ` Linus Torvalds
2010-01-01 13:58 ` [PATCH] sysfs: Cache the last sysfs_dirent to improve readdir scalability Eric W. Biederman
2010-01-01 15:33 ` Borislav Petkov
2010-01-01 18:56 ` Linus Torvalds
2010-01-01 22:43 ` [PATCH] sysfs: Cache the last sysfs_dirent to improve readdir scalability v2 Eric W. Biederman
2010-01-01 23:10 ` Linus Torvalds
2010-01-02 5:59 ` Greg KH
2010-01-02 15:40 ` Borislav Petkov
2010-01-01 15:16 ` drm_vm.c:drm_mmap: possible circular locking dependency detected (was: Re: Linux 2.6.33-rc2 - Merry Christmas ...) Eric W. Biederman
2010-01-02 2:59 ` drm_vm.c:drm_mmap: possible circular locking dependency detected Tejun Heo
2010-01-02 21:37 ` [PATCH] sysfs: Add lockdep annotations for the sysfs active reference Eric W. Biederman
2010-01-03 0:02 ` Tejun Heo
2010-01-17 16:26 ` Ming Lei
2010-01-17 17:18 ` Eric W. Biederman
2010-01-17 18:03 ` Dominik Brodowski
2010-01-02 21:49 ` drm_vm.c:drm_mmap: possible circular locking dependency detected Eric W. Biederman
2010-01-03 0:32 ` Tejun Heo
2010-01-03 2:06 ` Eric W. Biederman
2010-01-03 5:01 ` Tejun Heo
2010-01-03 5:38 ` Eric W. Biederman
2010-01-03 6:05 ` Tejun Heo
2010-01-03 7:47 ` Dmitry Torokhov
2010-01-03 10:57 ` Eric W. Biederman
2010-01-03 11:14 ` Eric W. Biederman
2010-01-04 19:16 ` Dmitry Torokhov
2010-01-04 18:57 ` Dmitry Torokhov
2010-01-04 19:43 ` Eric W. Biederman
2010-01-04 21:12 ` Dmitry Torokhov
2010-01-04 23:09 ` Tejun Heo
2009-12-31 8:40 ` drm_vm.c:drm_mmap: possible circular locking dependency detected (was: Re: Linux 2.6.33-rc2 - Merry Christmas ...) Eric W. Biederman
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