[PATCH -next] staging: exfat: Use kmemdup in exfat_symlink()

[YueHaibing]

Use kmemdup rather than duplicating its implementation

Signed-off-by: YueHaibing <yuehaib...@huawei.com>
---
 drivers/staging/exfat/exfat_super.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/exfat/exfat_super.c 
b/drivers/staging/exfat/exfat_super.c
index 5b5c2ca8c9aa..05fdecc3e9ea 100644
--- a/drivers/staging/exfat/exfat_super.c
+++ b/drivers/staging/exfat/exfat_super.c
@@ -2696,12 +2696,11 @@ static int exfat_symlink(struct inode *dir, struct 
dentry *dentry,
        inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
        /* timestamp is already written, so mark_inode_dirty() is unneeded. */
 
-       EXFAT_I(inode)->target = kmalloc(len+1, GFP_KERNEL);
+       EXFAT_I(inode)->target = kmemdup(target, len + 1, GFP_KERNEL);
        if (!EXFAT_I(inode)->target) {
                err = -ENOMEM;
                goto out;
        }
-       memcpy(EXFAT_I(inode)->target, target, len+1);
 
        dentry->d_time = GET_IVERSION(dentry->d_parent->d_inode);
        d_instantiate(dentry, inode);