From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Eric W. Biederman" Subject: [PATCH 14/29] sysctl: A more obvious version of grab_header. Date: Thu, 26 Jan 2012 20:51:50 -0800 Message-ID: <1327639925-12920-14-git-send-email-ebiederm@xmission.com> References: Cc: , , Lucian Adrian Grijincu , Damien Millescamps , "Eric W. Biederman" To: Return-path: In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Instead of relying on sysct_head_next(NULL) to magically return the right header for the root directory instead explicitly transform NULL into the root directories header. Signed-off-by: Eric W. Biederman --- fs/proc/proc_sysctl.c | 8 ++++---- 1 files changed, 4 insertions(+), 4 deletions(-) diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c index e573f9b..1544485 100644 --- a/fs/proc/proc_sysctl.c +++ b/fs/proc/proc_sysctl.c @@ -267,10 +267,10 @@ static struct ctl_table *find_in_table(struct ctl_table *p, struct qstr *name) static struct ctl_table_header *grab_header(struct inode *inode) { - if (PROC_I(inode)->sysctl) - return sysctl_head_grab(PROC_I(inode)->sysctl); - else - return sysctl_head_next(NULL); + struct ctl_table_header *head = PROC_I(inode)->sysctl; + if (!head) + head = &root_table_header; + return sysctl_head_grab(head); } static struct dentry *proc_sys_lookup(struct inode *dir, struct dentry *dentry, -- 1.7.2.5