48 	struct z_stream_s *stream = &ctx->comp_stream;  in deflate_comp_init()  local
50 	stream->workspace = vzalloc(zlib_deflate_workspacesize(  in deflate_comp_init()
52 	if (!stream->workspace) {  in deflate_comp_init()
56 	ret = zlib_deflateInit2(stream, DEFLATE_DEF_LEVEL, Z_DEFLATED,  in deflate_comp_init()
66 	vfree(stream->workspace);  in deflate_comp_init()
73 	struct z_stream_s *stream = &ctx->decomp_stream;  in deflate_decomp_init()  local
75 	stream->workspace = vzalloc(zlib_inflate_workspacesize());  in deflate_decomp_init()
76 	if (!stream->workspace) {  in deflate_decomp_init()
80 	ret = zlib_inflateInit2(stream, -DEFLATE_DEF_WINBITS);  in deflate_decomp_init()
88 	vfree(stream->workspace);  in deflate_decomp_init()
132 	struct z_stream_s *stream = &dctx->comp_stream;  in deflate_compress()  local
134 	ret = zlib_deflateReset(stream);  in deflate_compress()
140 	stream->next_in = (u8 *)src;  in deflate_compress()
141 	stream->avail_in = slen;  in deflate_compress()
142 	stream->next_out = (u8 *)dst;  in deflate_compress()
143 	stream->avail_out = *dlen;  in deflate_compress()
145 	ret = zlib_deflate(stream, Z_FINISH);  in deflate_compress()
151 	*dlen = stream->total_out;  in deflate_compress()
162 	struct z_stream_s *stream = &dctx->decomp_stream;  in deflate_decompress()  local
164 	ret = zlib_inflateReset(stream);  in deflate_decompress()
170 	stream->next_in = (u8 *)src;  in deflate_decompress()
171 	stream->avail_in = slen;  in deflate_decompress()
172 	stream->next_out = (u8 *)dst;  in deflate_decompress()
173 	stream->avail_out = *dlen;  in deflate_decompress()
175 	ret = zlib_inflate(stream, Z_SYNC_FLUSH);  in deflate_decompress()
181 	if (ret == Z_OK && !stream->avail_in && stream->avail_out) {  in deflate_decompress()
183 		stream->next_in = &zerostuff;  in deflate_decompress()
184 		stream->avail_in = 1;  in deflate_decompress()
185 		ret = zlib_inflate(stream, Z_FINISH);  in deflate_decompress()
192 	*dlen = stream->total_out;  in deflate_decompress()