[PATCH] v9fs: symlink support fixes

Two symlink fixes, v9fs_readlink didn't copy the last character of the
symlink name, v9fs_vfs_follow_link incorrectly called strlen of newly
allocated buffer instead of PATH_MAX.

Signed-off-by: Latchesar Ionkov <lucho@ionkov.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 91f5524..63e5b03 100644 (file)
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -886,8 +886,8 @@ static int v9fs_readlink(struct dentry *dentry, char *buffer, int buflen)
        }
 
        /* copy extension buffer into buffer */
-       if (fcall->params.rstat.stat.extension.len < buflen)
-               buflen = fcall->params.rstat.stat.extension.len;
+       if (fcall->params.rstat.stat.extension.len+1 < buflen)
+               buflen = fcall->params.rstat.stat.extension.len + 1;
 
        memcpy(buffer, fcall->params.rstat.stat.extension.str, buflen - 1);
        buffer[buflen-1] = 0;
@@ -951,7 +951,7 @@ static void *v9fs_vfs_follow_link(struct dentry *dentry, struct nameidata *nd)
        if (!link)
                link = ERR_PTR(-ENOMEM);
        else {
-               len = v9fs_readlink(dentry, link, strlen(link));
+               len = v9fs_readlink(dentry, link, PATH_MAX);
 
                if (len < 0) {
                        __putname(link);