Incorrect Error Handling in ggml_backend_graph_compute Function in example/magika/main.cpp

[charloco]

Describe the bug
There seems to be an error in the error handling logic of the ggml_backend_graph_compute function. The function returns a status code of 0 when it executes successfully. However, the current logic treats a successful execution as an error due to the use of the logical NOT operator (!).

To Reproduce
Here is the problematic code snippet:

if (!ggml_backend_graph_compute(model.backend, gf)) {
    fprintf(stderr, "%s: ggml_backend_graph_compute() failed\n", __func__);
    return false;
}

Expected behavior The if condition should not be negated. The correct code should be:

if (ggml_backend_graph_compute(model.backend, gf) != GGML_STATUS_SUCCESS) {
    fprintf(stderr, "%s: ggml_backend_graph_compute() failed\n", __func__);
    return false;
}

[slaren]

Should be fixed now, thanks.