linux-kernel - [patch] ext4: missing unlock in ext4_clear_request

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Message-ID: <20101117050732.GB31724@bicker>
Date:	Wed, 17 Nov 2010 08:07:32 +0300
From:	Dan Carpenter <error27@...il.com>
To:	Theodore Ts'o <tytso@....edu>, Lukas Czerner <lczerner@...hat.com>
Cc:	Andreas Dilger <adilger.kernel@...ger.ca>,
	linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: [patch] ext4: missing unlock in ext4_clear_request_list()

If the the li_request_list was empty then it returned with the lock
held.  Instead of adding a "goto unlock" I just removed that special
case and let it go past the empty list_for_each_safe().

Signed-off-by: Dan Carpenter <error27@...il.com>
---
This is a static checker patch.

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 61182fe..ef09d14 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -2799,9 +2799,6 @@ static void ext4_clear_request_list(void)
 	struct ext4_li_request *elr;
 
 	mutex_lock(&ext4_li_info->li_list_mtx);
-	if (list_empty(&ext4_li_info->li_request_list))
-		return;
-
 	list_for_each_safe(pos, n, &ext4_li_info->li_request_list) {
 		elr = list_entry(pos, struct ext4_li_request,
 				 lr_request);
--
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