isofs_cmp(): we'll never see a dentry for . or ..

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 2 insertions, 18 deletions

diff --git a/fs/isofs/namei.c b/fs/isofs/namei.c
index 95295640d9c8..6f6dd0c6429f 100644
--- a/fs/isofs/namei.c
+++ b/fs/isofs/namei.c
@@ -18,23 +18,6 @@ static int
 isofs_cmp(struct dentry *dentry, const char *compare, int dlen)
 {
         struct qstr qstr;
-
-        if (!compare)
-                return 1;
-
-        /* check special "." and ".." files */
-        if (dlen == 1) {
-                /* "." */
-                if (compare[0] == 0) {
-                        if (!dentry->d_name.len)
-                                return 0;
-                        compare = ".";
-                } else if (compare[0] == 1) {
-                        compare = "..";
-                        dlen = 2;
-                }
-        }
-
         qstr.name = compare;
         qstr.len = dlen;
         return dentry->d_op->d_compare(NULL, NULL, dentry->d_name.len, dentry->d_name.name, &qstr);
@@ -146,7 +129,8 @@ isofs_find_entry(struct inode *dir, struct dentry *dentry,
                                 (!(de->flags[-sbi->s_high_sierra] & 1))) &&
                         (sbi->s_showassoc ||
                                 (!(de->flags[-sbi->s_high_sierra] & 4)))) {
-                        match = (isofs_cmp(dentry, dpnt, dlen) == 0);
+                        if (dpnt && (dlen > 1 || dpnt[0] > 1))
+                                match = (isofs_cmp(dentry, dpnt, dlen) == 0);
                 }
                 if (match) {
                         isofs_normalize_block_and_offset(de,