qnx4fs: Use kmemdup rather than duplicating its implementation

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

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Anders Larsen <al@alarsen.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

1 files changed, 4 insertions, 3 deletions

diff --git a/fs/qnx4/inode.c b/fs/qnx4/inode.c
index 3bdd21418432..f9e9568810fb 100644
--- a/fs/qnx4/inode.c
+++ b/fs/qnx4/inode.c
@@ -199,12 +199,13 @@ static const char *qnx4_checkroot(struct super_block *sb)
                                         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;
                                         }
                                 }