f2fs: reduce indentation in f2fs_file_write_iter()

Replace 'if (ret > 0)' with 'if (ret <= 0) goto out_unlock;'.
No change in behavior.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

fs/f2fs/file.c

@@ -4338,7 +4338,9 @@ static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
 	}
 
 	ret = generic_write_checks(iocb, from);
-	if (ret > 0) {
+	if (ret <= 0)
+		goto out_unlock;
+
 	if (iocb->ki_flags & IOCB_NOWAIT) {
 		if (!f2fs_overwrite_io(inode, iocb->ki_pos,
 					iov_iter_count(from)) ||
@@ -4348,6 +4350,7 @@ static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
 			goto out_unlock;
 		}
 	}
+
 	if (iocb->ki_flags & IOCB_DIRECT) {
 		ret = f2fs_convert_inline_inode(inode);
 		if (ret)
@@ -4371,11 +4374,12 @@ static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
 		filemap_invalidate_unlock(inode->i_mapping);
 		up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 	}
+
 	clear_inode_flag(inode, FI_PREALLOCATED_ALL);
 
 	if (ret > 0)
 		f2fs_update_iostat(F2FS_I_SB(inode), APP_WRITE_IO, ret);
-	}
+
 out_unlock:
 	inode_unlock(inode);
 out: