fuse: fuse_fill_super error handling cleanup

Clean up error handling for the whole of fuse_fill_super() function.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>

diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 6893717..dc649f6 100644 (file)
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -805,16 +805,18 @@ static int fuse_fill_super(struct super_block *sb, void *data, int silent)
        int err;
        int is_bdev = sb->s_bdev != NULL;
 
+       err = -EINVAL;
        if (sb->s_flags & MS_MANDLOCK)
-               return -EINVAL;
+               goto err;
 
        if (!parse_fuse_opt((char *) data, &d, is_bdev))
-               return -EINVAL;
+               goto err;
 
        if (is_bdev) {
 #ifdef CONFIG_BLOCK
+               err = -EINVAL;
                if (!sb_set_blocksize(sb, d.blksize))
-                       return -EINVAL;
+                       goto err;
 #endif
        } else {
                sb->s_blocksize = PAGE_CACHE_SIZE;
@@ -826,25 +828,22 @@ static int fuse_fill_super(struct super_block *sb, void *data, int silent)
        sb->s_export_op = &fuse_export_operations;
 
        file = fget(d.fd);
+       err = -EINVAL;
        if (!file)
-               return -EINVAL;
+               goto err;
 
-       if (file->f_op != &fuse_dev_operations) {
-               fput(file);
-               return -EINVAL;
-       }
+       if (file->f_op != &fuse_dev_operations)
+               goto err_fput;
 
        fc = kmalloc(sizeof(*fc), GFP_KERNEL);
-       if (!fc) {
-               fput(file);
-               return -ENOMEM;
-       }
+       err = -ENOMEM;
+       if (!fc)
+               goto err_fput;
 
        err = fuse_conn_init(fc, sb);
        if (err) {
-               fput(file);
                kfree(fc);
-               return err;
+               goto err_fput;
        }
 
        fc->release = fuse_free_conn;
@@ -859,12 +858,12 @@ static int fuse_fill_super(struct super_block *sb, void *data, int silent)
        err = -ENOMEM;
        root = fuse_get_root_inode(sb, d.rootmode);
        if (!root)
-               goto err;
+               goto err_put_conn;
 
        root_dentry = d_alloc_root(root);
        if (!root_dentry) {
                iput(root);
-               goto err;
+               goto err_put_conn;
        }
 
        init_req = fuse_request_alloc();
@@ -908,9 +907,11 @@ static int fuse_fill_super(struct super_block *sb, void *data, int silent)
        fuse_request_free(init_req);
  err_put_root:
        dput(root_dentry);
- err:
-       fput(file);
+ err_put_conn:
        fuse_conn_put(fc);
+ err_fput:
+       fput(file);
+ err:
        return err;
 }