cudaError_enum? but nothing wrong?

Hi everyone,

I get this error twice:
First-chance exception at 0x761e42eb in reduction.exe: Microsoft C++ exception: cudaError_enum at memory location 0x0012facc.

at this like

CUDA_SAFE_CALL(cudaMalloc((void **) &DATA, (size*N_LC)));

where:
size_t size = 256 * sizeof(float);
N_LC=2048;

everything seems to work just fine.
What does this error mean and is there anyway of getting rid of it?

thanks,