Hope this helps. Straight from the header file:
/* Error Codes */ #define CL_SUCCESS 0 #define CL_DEVICE_NOT_FOUND -1 #define CL_DEVICE_NOT_AVAILABLE -2 #define CL_COMPILER_NOT_AVAILABLE -3 #define CL_MEM_OBJECT_ALLOCATION_FAILURE -4 #define CL_OUT_OF_RESOURCES -5 #define CL_OUT_OF_HOST_MEMORY -6 #define CL_PROFILING_INFO_NOT_AVAILABLE -7 #define CL_MEM_COPY_OVERLAP -8 #define CL_IMAGE_FORMAT_MISMATCH -9 #define CL_IMAGE_FORMAT_NOT_SUPPORTED -10 #define CL_BUILD_PROGRAM_FAILURE -11 #define CL_MAP_FAILURE -12 #define CL_INVALID_VALUE -30 #define CL_INVALID_DEVICE_TYPE -31 #define CL_INVALID_PLATFORM -32 #define CL_INVALID_DEVICE -33 #define CL_INVALID_CONTEXT -34 #define CL_INVALID_QUEUE_PROPERTIES -35 #define CL_INVALID_COMMAND_QUEUE -36 #define CL_INVALID_HOST_PTR -37 #define CL_INVALID_MEM_OBJECT -38 #define CL_INVALID_IMAGE_FORMAT_DESCRIPTOR -39 #define CL_INVALID_IMAGE_SIZE -40 #define CL_INVALID_SAMPLER -41 #define CL_INVALID_BINARY -42 #define CL_INVALID_BUILD_OPTIONS -43 #define CL_INVALID_PROGRAM -44 #define CL_INVALID_PROGRAM_EXECUTABLE -45 #define CL_INVALID_KERNEL_NAME -46 #define CL_INVALID_KERNEL_DEFINITION -47 #define CL_INVALID_KERNEL -48 #define CL_INVALID_ARG_INDEX -49 #define CL_INVALID_ARG_VALUE -50 #define CL_INVALID_ARG_SIZE -51 #define CL_INVALID_KERNEL_ARGS -52 #define CL_INVALID_WORK_DIMENSION -53 #define CL_INVALID_WORK_GROUP_SIZE -54 #define CL_INVALID_WORK_ITEM_SIZE -55 #define CL_INVALID_GLOBAL_OFFSET -56 #define CL_INVALID_EVENT_WAIT_LIST -57 #define CL_INVALID_EVENT -58 #define CL_INVALID_OPERATION -59 #define CL_INVALID_GL_OBJECT -60 #define CL_INVALID_BUFFER_SIZE -61 #define CL_INVALID_MIP_LEVEL -62 #define CL_INVALID_GLOBAL_WORK_SIZE -63