[linux-cifs-client] [PATCH 3/5] cifs: Make cifs_strlcpy_to_host use UniStrnlenBytes()

[Suresh Jayaraman]

Make cifs_strlcpy_to_host use UniStrnlenBytes()

Signed-off-by: Suresh Jayaraman <sjayaraman at suse.de>
---
 fs/cifs/cifssmb.c |   25 +++++++++++++------------
 1 files changed, 13 insertions(+), 12 deletions(-)

diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index a02c43b..30fa11d 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -91,26 +91,27 @@ static int
 cifs_strlcpy_to_host(char **dst, const char *src, const int maxlen,
 		 const bool is_unicode, const struct nls_table *nls_codepage)
 {
-	int plen;
+	int src_len, dst_len;
+	size_t nbytes;
 
 	if (is_unicode) {
-		plen = UniStrnlen((wchar_t *)src, maxlen);
-		*dst = kmalloc((4 * plen) + 2, GFP_KERNEL);
+		nbytes = UniStrnlenBytes((wchar_t *)src, maxlen, &src_len,
+					 nls_codepage);
+		*dst = kmalloc(nbytes + 2, GFP_KERNEL);
 		if (!*dst)
-			goto cifs_strlcpy_to_host_ErrExit;
-		cifs_strfromUCS_le(*dst, (__le16 *)src, plen, nls_codepage);
-		(*dst)[plen] = 0;
-		(*dst)[plen+1] = 0; /* needed for Unicode */
+			goto err_exit;
+		dst_len = cifs_strfromUCS_le(*dst, (__le16 *)src, src_len,
+					     nls_codepage);
 	} else {
-		plen = strnlen(src, maxlen);
-		*dst = kmalloc(plen + 2, GFP_KERNEL);
+		src_len = strnlen(src, maxlen);
+		*dst = kmalloc(src_len + 1, GFP_KERNEL);
 		if (!*dst)
-			goto cifs_strlcpy_to_host_ErrExit;
-		strlcpy(*dst, src, plen);
+			goto err_exit;
+		strlcpy(*dst, src, src_len + 1);
 	}
 	return 0;
 
-cifs_strlcpy_to_host_ErrExit:
+err_exit:
 	cERROR(1, ("Failed to allocate buffer for string\n"));
 	return -ENOMEM;
 }