diff options
Diffstat (limited to 'hw/scsi/esp.c')
| -rw-r--r-- | hw/scsi/esp.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 64680b3809..baa0a2cfdf 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -248,6 +248,8 @@ static void esp_do_dma(ESPState *s) len = s->dma_left; if (s->do_cmd) { trace_esp_do_dma(s->cmdlen, len); + assert (s->cmdlen <= sizeof(s->cmdbuf) && + len <= sizeof(s->cmdbuf) - s->cmdlen); s->dma_memory_read(s->dma_opaque, &s->cmdbuf[s->cmdlen], len); return; } @@ -345,7 +347,7 @@ static void handle_ti(ESPState *s) s->dma_counter = dmalen; if (s->do_cmd) - minlen = (dmalen < 32) ? dmalen : 32; + minlen = (dmalen < ESP_CMDBUF_SZ) ? dmalen : ESP_CMDBUF_SZ; else if (s->ti_size < 0) minlen = (dmalen < -s->ti_size) ? dmalen : -s->ti_size; else @@ -449,7 +451,7 @@ void esp_reg_write(ESPState *s, uint32_t saddr, uint64_t val) break; case ESP_FIFO: if (s->do_cmd) { - if (s->cmdlen < TI_BUFSZ) { + if (s->cmdlen < ESP_CMDBUF_SZ) { s->cmdbuf[s->cmdlen++] = val & 0xff; } else { trace_esp_error_fifo_overrun(); |