From a9482ebcdedbc5872ed34a266e6a45c35116f264 Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Wed, 8 Apr 2009 15:08:53 +0800 Subject: [PATCH] ncpfs: use memdup_user() Remove open-coded memdup_user() Signed-off-by: Li Zefan Signed-off-by: Al Viro --- fs/ncpfs/ioctl.c | 21 +++++++-------------- 1 file changed, 7 insertions(+), 14 deletions(-) diff --git a/fs/ncpfs/ioctl.c b/fs/ncpfs/ioctl.c index f54360f50a9c..fa038df63ac8 100644 --- a/fs/ncpfs/ioctl.c +++ b/fs/ncpfs/ioctl.c @@ -660,13 +660,10 @@ static int __ncp_ioctl(struct inode *inode, struct file *filp, if (user.object_name_len > NCP_OBJECT_NAME_MAX_LEN) return -ENOMEM; if (user.object_name_len) { - newname = kmalloc(user.object_name_len, GFP_USER); - if (!newname) - return -ENOMEM; - if (copy_from_user(newname, user.object_name, user.object_name_len)) { - kfree(newname); - return -EFAULT; - } + newname = memdup_user(user.object_name, + user.object_name_len); + if (IS_ERR(newname)) + return PTR_ERR(newname); } else { newname = NULL; } @@ -760,13 +757,9 @@ static int __ncp_ioctl(struct inode *inode, struct file *filp, if (user.len > NCP_PRIVATE_DATA_MAX_LEN) return -ENOMEM; if (user.len) { - new = kmalloc(user.len, GFP_USER); - if (!new) - return -ENOMEM; - if (copy_from_user(new, user.data, user.len)) { - kfree(new); - return -EFAULT; - } + new = memdup_user(user.data, user.len); + if (IS_ERR(new)) + return PTR_ERR(new); } else { new = NULL; } -- GitLab