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ksmbd: use kasprintf() in ksmbd_vfs_xattr_stream_name()

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Simplify the code by using kasprintf().  This also silences a Smatch
warning:

    fs/ksmbd/vfs.c:1725 ksmbd_vfs_xattr_stream_name()
    warn: inconsistent indenting

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Dan Carpenter 2021-07-07 13:15:32 +03:00 committed by Namjae Jeon
parent 0f6619aee8
commit 07781de905
1 changed files with 6 additions and 21 deletions
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27
fs/ksmbd/vfs.c
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@ -1698,35 +1698,20 @@ ssize_t ksmbd_vfs_casexattr_len(struct user_namespace *user_ns,
int ksmbd_vfs_xattr_stream_name(char *stream_name, char **xattr_stream_name,
size_t *xattr_stream_name_size, int s_type)
{
int stream_name_size;
char *xattr_stream_name_buf;
char *type;
int type_len;
char *type, *buf;
if (s_type == DIR_STREAM)
type = ":$INDEX_ALLOCATION";
else
type = ":$DATA";
type_len = strlen(type);
stream_name_size = strlen(stream_name);
*xattr_stream_name_size = stream_name_size + XATTR_NAME_STREAM_LEN + 1;
xattr_stream_name_buf = kmalloc(*xattr_stream_name_size + type_len,
GFP_KERNEL);
if (!xattr_stream_name_buf)
buf = kasprintf(GFP_KERNEL, "%s%s%s",
XATTR_NAME_STREAM, stream_name, type);
if (!buf)
return -ENOMEM;
memcpy(xattr_stream_name_buf, XATTR_NAME_STREAM, XATTR_NAME_STREAM_LEN);
if (stream_name_size) {
memcpy(&xattr_stream_name_buf[XATTR_NAME_STREAM_LEN],
stream_name, stream_name_size);
}
memcpy(&xattr_stream_name_buf[*xattr_stream_name_size - 1], type, type_len);
*xattr_stream_name_size += type_len;
xattr_stream_name_buf[*xattr_stream_name_size - 1] = '\0';
*xattr_stream_name = xattr_stream_name_buf;
*xattr_stream_name = buf;
*xattr_stream_name_size = strlen(buf) + 1;
return 0;
}