26 	z_stream *stream = kmalloc(sizeof(z_stream), GFP_KERNEL);  in zlib_init()  local
27 	if (stream == NULL)  in zlib_init()
29 	stream->workspace = vmalloc(zlib_inflate_workspacesize());  in zlib_init()
30 	if (stream->workspace == NULL)  in zlib_init()
33 	return stream;  in zlib_init()
37 	kfree(stream);  in zlib_init()
44 	z_stream *stream = strm;  in zlib_free()  local
46 	if (stream)  in zlib_free()
47 		vfree(stream->workspace);  in zlib_free()
48 	kfree(stream);  in zlib_free()
59 	z_stream *stream = strm;  in zlib_uncompress()  local
61 	stream->avail_out = PAGE_SIZE;  in zlib_uncompress()
62 	stream->next_out = squashfs_first_page(output);  in zlib_uncompress()
63 	stream->avail_in = 0;  in zlib_uncompress()
65 	if (IS_ERR(stream->next_out)) {  in zlib_uncompress()
66 		error = PTR_ERR(stream->next_out);  in zlib_uncompress()
73 		if (stream->avail_in == 0) {  in zlib_uncompress()
86 			stream->next_in = data + offset;  in zlib_uncompress()
87 			stream->avail_in = avail;  in zlib_uncompress()
91 		if (stream->avail_out == 0) {  in zlib_uncompress()
92 			stream->next_out = squashfs_next_page(output);  in zlib_uncompress()
93 			if (IS_ERR(stream->next_out)) {  in zlib_uncompress()
94 				error = PTR_ERR(stream->next_out);  in zlib_uncompress()
96 			} else if (stream->next_out != NULL)  in zlib_uncompress()
97 				stream->avail_out = PAGE_SIZE;  in zlib_uncompress()
101 			zlib_err = zlib_inflateInit(stream);  in zlib_uncompress()
109 		zlib_err = zlib_inflate(stream, Z_SYNC_FLUSH);  in zlib_uncompress()
122 		if (zlib_inflateEnd(stream) != Z_OK)  in zlib_uncompress()
125 	return error ? error : stream->total_out;  in zlib_uncompress()