f2fs: fix wrong casting for dentry name

The dentry name type is unsigned char *.
If we don't match this type, some character codes can be changed by signed bit.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

diff --git a/fs/f2fs/hash.c b/fs/f2fs/hash.c
index 948d17bf7281f6c9c32cf1e889dc844e57fbe893..a844fcfb9a8dcc70859e44c8933c465d9be36fb9 100644 (file)
--- a/fs/f2fs/hash.c
+++ b/fs/f2fs/hash.c
@@ -42,7 +42,8 @@ static void TEA_transform(unsigned int buf[4], unsigned int const in[])
        buf[1] += b1;
 }
 
-static void str2hashbuf(const char *msg, size_t len, unsigned int *buf, int num)
+static void str2hashbuf(const unsigned char *msg, size_t len,
+                               unsigned int *buf, int num)
 {
        unsigned pad, val;
        int i;
@@ -73,9 +74,9 @@ f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info)
 {
        __u32 hash;
        f2fs_hash_t f2fs_hash;
-       const char *p;
+       const unsigned char *p;
        __u32 in[8], buf[4];
-       const char *name = name_info->name;
+       const unsigned char *name = name_info->name;
        size_t len = name_info->len;
 
        if ((len <= 2) && (name[0] == '.') &&