diff options
| -rw-r--r-- | hw/ssi/mss-spi.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/hw/ssi/mss-spi.c b/hw/ssi/mss-spi.c index 918b1f3e82..4c9da5d2b2 100644 --- a/hw/ssi/mss-spi.c +++ b/hw/ssi/mss-spi.c @@ -165,7 +165,13 @@ spi_read(void *opaque, hwaddr addr, unsigned int size) case R_SPI_RX: s->regs[R_SPI_STATUS] &= ~S_RXFIFOFUL; s->regs[R_SPI_STATUS] &= ~S_RXCHOVRF; - ret = fifo32_pop(&s->rx_fifo); + if (fifo32_is_empty(&s->rx_fifo)) { + qemu_log_mask(LOG_GUEST_ERROR, + "%s: Reading empty RX_FIFO\n", + __func__); + } else { + ret = fifo32_pop(&s->rx_fifo); + } if (fifo32_is_empty(&s->rx_fifo)) { s->regs[R_SPI_STATUS] |= S_RXFIFOEMP; } |