Source of decompress_unlz4.c - linux-imx - PHYTEC BitBucket (Stash)

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​
    if (input && fill) {
        error("Both input pointer and fill function provided,");
        goto exit_1;
    } else if (input) {
        inp = input;
    } else if (!fill) {
        error("NULL input pointer and missing fill function");
        goto exit_1;
    } else {
        inp = large_malloc(lz4_compressbound(uncomp_chunksize));
        inp = large_malloc(LZ4_compressBound(uncomp_chunksize));
        if (!inp) {
            error("Could not allocate input buffer");
            goto exit_1;
        }
    }
    inp_start = inp;
​
    if (posp)
        *posp = 0;
​
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        }
​
​
        if (posp)
            *posp += 4;
​
        if (!fill) {
            inp += 4;
            size -= 4;
        } else {
            if (chunksize > lz4_compressbound(uncomp_chunksize)) {
            if (chunksize > LZ4_compressBound(uncomp_chunksize)) {
                error("chunk length is longer than allocated");
                goto exit_2;
            }
            size = fill(inp, chunksize);
            if (size < chunksize) {
                error("data corrupted");
                goto exit_2;
            }
        }
#ifdef PREBOOT
        if (out_len >= uncomp_chunksize) {
            dest_len = uncomp_chunksize;
            out_len -= dest_len;
        } else
            dest_len = out_len;
        ret = lz4_decompress(inp, &chunksize, outp, dest_len);
​
        ret = LZ4_decompress_fast(inp, outp, dest_len);
        chunksize = ret;
#else
        dest_len = uncomp_chunksize;
        ret = lz4_decompress_unknownoutputsize(inp, chunksize, outp,
                &dest_len);
​
        ret = LZ4_decompress_safe(inp, outp, chunksize, dest_len);
        dest_len = ret;
#endif
        if (ret < 0) {
            error("Decoding failed");
            goto exit_2;
        }
​
        ret = -1;
        if (flush && flush(outp, dest_len) != dest_len)
            goto exit_2;
        if (output)