linux-kernel - [PATCH] qnx4fs: Use kmemdup rather than duplicating its implementation

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Date:	Sun, 20 Nov 2011 13:35:57 +0100
From:	Anders Larsen <al@...rsen.net>
To:	trivial@...nel.org
Cc:	Thomas Meyer <thomas@...3r.de>, linux-kernel@...r.kernel.org
Subject: [PATCH] qnx4fs: Use kmemdup rather than duplicating its implementation

From: Thomas Meyer <thomas@...3r.de>

The semantic patch that makes this change is available
in scripts/coccinelle/api/memdup.cocci.

Signed-off-by: Thomas Meyer <thomas@...3r.de>
Signed-off-by: Anders Larsen <al@...rsen.net>
---

diff -u -p a/fs/qnx4/inode.c b/fs/qnx4/inode.c
--- a/fs/qnx4/inode.c 2011-11-07 19:38:23.987165894 +0100
+++ b/fs/qnx4/inode.c 2011-11-08 10:33:59.882543999 +0100
@@ -199,12 +199,13 @@ static const char *qnx4_checkroot(struct
 					if (!strcmp(rootdir->di_fname,
 						    QNX4_BMNAME)) {
 						found = 1;
-						qnx4_sb(sb)->BitMap = kmalloc( sizeof( struct qnx4_inode_entry ), GFP_KERNEL );
+						qnx4_sb(sb)->BitMap = kmemdup(rootdir,
+									      sizeof(struct qnx4_inode_entry),
+									      GFP_KERNEL);
 						if (!qnx4_sb(sb)->BitMap) {
 							brelse (bh);
 							return "not enough memory for bitmap inode";
-						}
-						memcpy( qnx4_sb(sb)->BitMap, rootdir, sizeof( struct qnx4_inode_entry ) );	/* keep bitmap inode known */
+						}/* keep bitmap inode known */
 						break;
 					}
 				}
--
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