devpts: Move parse_mount_options into fill_super
authorEric W. Biederman <ebiederm@xmission.com>
Wed, 20 Apr 2016 17:01:39 +0000 (12:01 -0500)
committerEric W. Biederman <ebiederm@xmission.com>
Thu, 22 Sep 2016 18:31:58 +0000 (13:31 -0500)
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
fs/devpts/inode.c

index d116453b0276634fabb32ee96df9cf96ce9cb25a..f582a4be1a7a3e1d1142366d3f275af0c9311e7b 100644 (file)
@@ -395,6 +395,7 @@ static int
 devpts_fill_super(struct super_block *s, void *data, int silent)
 {
        struct inode *inode;
+       int error;
 
        s->s_iflags &= ~SB_I_NODEV;
        s->s_blocksize = 1024;
@@ -403,10 +404,16 @@ devpts_fill_super(struct super_block *s, void *data, int silent)
        s->s_op = &devpts_sops;
        s->s_time_gran = 1;
 
+       error = -ENOMEM;
        s->s_fs_info = new_pts_fs_info(s);
        if (!s->s_fs_info)
                goto fail;
 
+       error = parse_mount_options(data, PARSE_MOUNT, &DEVPTS_SB(s)->mount_opts);
+       if (error)
+               goto fail;
+
+       error = -ENOMEM;
        inode = new_inode(s);
        if (!inode)
                goto fail;
@@ -424,7 +431,7 @@ devpts_fill_super(struct super_block *s, void *data, int silent)
        pr_err("get root dentry failed\n");
 
 fail:
-       return -ENOMEM;
+       return error;
 }
 
 /*
@@ -437,13 +444,8 @@ static struct dentry *devpts_mount(struct file_system_type *fs_type,
        int flags, const char *dev_name, void *data)
 {
        int error;
-       struct pts_mount_opts opts;
        struct super_block *s;
 
-       error = parse_mount_options(data, PARSE_MOUNT, &opts);
-       if (error)
-               return ERR_PTR(error);
-
        s = sget(fs_type, NULL, set_anon_super, flags, NULL);
        if (IS_ERR(s))
                return ERR_CAST(s);
@@ -455,8 +457,6 @@ static struct dentry *devpts_mount(struct file_system_type *fs_type,
                s->s_flags |= MS_ACTIVE;
        }
 
-       memcpy(&(DEVPTS_SB(s))->mount_opts, &opts, sizeof(opts));
-
        error = mknod_ptmx(s);
        if (error)
                goto out_undo_sget;