linux-kernel - [PATCH] fs/omfs: make use of kmemdup

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Message-ID: <20190721112326.GA5927@hari-Inspiron-1545>
Date:   Sun, 21 Jul 2019 16:53:27 +0530
From:   Hariprasad Kelam <hariprasad.kelam@...il.com>
To:     Bob Copeland <me@...copeland.com>,
        linux-karma-devel@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org
Subject: [PATCH] fs/omfs: make use of kmemdup

kmalloc + memcpy can be replaced with kmemdup.

fix below issue reported by coccicheck
./fs/omfs/inode.c:366:9-16: WARNING opportunity for kmemdup

Signed-off-by: Hariprasad Kelam <hariprasad.kelam@...il.com>
---
 fs/omfs/inode.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/omfs/inode.c b/fs/omfs/inode.c
index 08226a8..bc5a072 100644
--- a/fs/omfs/inode.c
+++ b/fs/omfs/inode.c
@@ -363,12 +363,11 @@ static int omfs_get_imap(struct super_block *sb)
 		bh = sb_bread(sb, block++);
 		if (!bh)
 			goto nomem_free;
-		*ptr = kmalloc(sb->s_blocksize, GFP_KERNEL);
+		*ptr = kmemdup(bh->b_data, sb->s_blocksize, GFP_KERNEL);
 		if (!*ptr) {
 			brelse(bh);
 			goto nomem_free;
 		}
-		memcpy(*ptr, bh->b_data, sb->s_blocksize);
 		if (count < sb->s_blocksize)
 			memset((void *)*ptr + count, 0xff,
 				sb->s_blocksize - count);
-- 
2.7.4