linux-kernel - [PATCH] Fix debugfs_create_bool's error checking method for wireless/iwlwifi/

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:	Wed, 22 Oct 2008 17:06:12 +0800
From:	Zhaolei <zhaolei@...fujitsu.com>
To:	linux-kernel@...r.kernel.org
CC:	yi.zhu@...el.com, reinette.chatre@...el.com,
	linux-wireless@...r.kernel.org, ipw3945-devel@...ts.sourceforge.net
Subject: [PATCH] Fix debugfs_create_bool's error checking method for wireless/iwlwifi/

Hi,

debugfs_create_bool() returns NULL if an error occurs, returns -ENODEV
when debugfs is not enabled in the kernel.

Signed-off-by: Zhao Lei <zhaolei@...fujitsu.com>
---
 drivers/net/wireless/iwlwifi/iwl-debugfs.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index 20db0eb..5346ed5 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -58,7 +58,8 @@
 #define DEBUGFS_ADD_BOOL(name, parent, ptr) do {                        \
 	dbgfs->dbgfs_##parent##_files.file_##name =                     \
 	debugfs_create_bool(#name, 0644, dbgfs->dir_##parent, ptr);     \
-	if (IS_ERR(dbgfs->dbgfs_##parent##_files.file_##name))          \
+	if (IS_ERR(dbgfs->dbgfs_##parent##_files.file_##name)		\
+			|| !dbgfs->dbgfs_##parent##_files.file_##name)	\
 		goto err;                                               \
 } while (0)
 
-- 1.5.5.3 


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/