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staging: exfat: Use kmemdup in exfat_symlink()

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Use kmemdup rather than duplicating its implementation

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20190905030047.88401-1-yuehaibing@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
YueHaibing 2019-09-05 03:00:47 +00:00 committed by Greg Kroah-Hartman
parent 981cdf7d57
commit f30bd2989b
1 changed files with 1 additions and 2 deletions
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drivers/staging/exfat/exfat_super.c
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@ -2706,12 +2706,11 @@ 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);