linux-kernel - [PATCH 1/4] fs: befs: Remove redundant validation from befs_find_brun

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Message-Id: <9859a616787673d2f36ce21d4aa0220637c55001.1467446561.git.salah.triki@gmail.com>
Date:	Sat,  2 Jul 2016 09:05:28 +0100
From:	Salah Triki <salah.triki@...il.com>
To:	akpm@...ux-foundation.org, viro@...iv.linux.org.uk
Cc:	Salah Triki <salah.triki@...il.com>, mhocko@...e.com,
	vdavydov@...tuozzo.com, luisbg@....samsung.com,
	linux-kernel@...r.kernel.org
Subject: [PATCH 1/4] fs: befs: Remove redundant validation from befs_find_brun_direct

The only caller of befs_find_brun_direct is befs_fblock2brun, which
already validates that the block is within the range of direct blocks.
So remove the duplicate validation.

Signed-off-by: Salah Triki <salah.triki@...il.com>
---
 fs/befs/datastream.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/fs/befs/datastream.c b/fs/befs/datastream.c
index 26cc417..e224b9a 100644
--- a/fs/befs/datastream.c
+++ b/fs/befs/datastream.c
@@ -249,17 +249,9 @@ befs_find_brun_direct(struct super_block *sb, const befs_data_stream *data,
 	int i;
 	const befs_block_run *array = data->direct;
 	befs_blocknr_t sum;
-	befs_blocknr_t max_block =
-	    data->max_direct_range >> BEFS_SB(sb)->block_shift;
 
 	befs_debug(sb, "---> %s, find %lu", __func__, (unsigned long)blockno);
 
-	if (blockno > max_block) {
-		befs_error(sb, "%s passed block outside of direct region",
-			   __func__);
-		return BEFS_ERR;
-	}
-
 	for (i = 0, sum = 0; i < BEFS_NUM_DIRECT_BLOCKS;
 	     sum += array[i].len, i++) {
 		if (blockno >= sum && blockno < sum + (array[i].len)) {
-- 
1.9.1