linux-kernel - [PATCH] ext4: remove redundant assignment to node

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Message-Id: <20190619090007.26962-1-colin.king@canonical.com>
Date:   Wed, 19 Jun 2019 10:00:06 +0100
From:   Colin King <colin.king@...onical.com>
To:     Theodore Ts'o <tytso@....edu>,
        Andreas Dilger <adilger.kernel@...ger.ca>,
        linux-ext4@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] ext4: remove redundant assignment to node

From: Colin Ian King <colin.king@...onical.com>

Pointer 'node' is assigned a value that is never read, node is
later overwritten when it re-assigned a different value inside
the while-loop.  The assignment is redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 fs/ext4/extents_status.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/fs/ext4/extents_status.c b/fs/ext4/extents_status.c
index 023a3eb3afa3..7521de2dcf3a 100644
--- a/fs/ext4/extents_status.c
+++ b/fs/ext4/extents_status.c
@@ -1317,7 +1317,6 @@ static int es_do_reclaim_extents(struct ext4_inode_info *ei, ext4_lblk_t end,
 	es = __es_tree_search(&tree->root, ei->i_es_shrink_lblk);
 	if (!es)
 		goto out_wrap;
-	node = &es->rb_node;
 	while (*nr_to_scan > 0) {
 		if (es->es_lblk > end) {
 			ei->i_es_shrink_lblk = end + 1;
-- 
2.20.1