static int megasas_map_dcmd(MegasasState *s, MegasasCmd *cmd)
{
dma_addr_t iov_pa, iov_size;
+ int iov_count;
cmd->flags = le16_to_cpu(cmd->frame->header.flags);
- if (!cmd->frame->header.sge_count) {
+ iov_count = cmd->frame->header.sge_count;
+ if (!iov_count) {
trace_megasas_dcmd_zero_sge(cmd->index);
cmd->iov_size = 0;
return 0;
- } else if (cmd->frame->header.sge_count > 1) {
- trace_megasas_dcmd_invalid_sge(cmd->index,
- cmd->frame->header.sge_count);
+ } else if (iov_count > 1) {
+ trace_megasas_dcmd_invalid_sge(cmd->index, iov_count);
cmd->iov_size = 0;
return -EINVAL;
}