diff --git a/drivers/tty/serial/8250/8250_omap.c b/drivers/tty/serial/8250/8250_omap.c index d75a66c7275098184b53344d0729c9dd2ac50a85..20c5b9c4c288ffb23926a51de058c22ca84d1b76 100644 --- a/drivers/tty/serial/8250/8250_omap.c +++ b/drivers/tty/serial/8250/8250_omap.c @@ -1285,7 +1285,7 @@ static int omap8250_runtime_suspend(struct device *dev) return -EBUSY; } - if (up->dma) + if (up->dma && up->dma->rxchan) omap_8250_rx_dma(up, UART_IIR_RX_TIMEOUT); priv->latency = PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE; @@ -1310,7 +1310,7 @@ static int omap8250_runtime_resume(struct device *dev) if (loss_cntx) omap8250_restore_regs(up); - if (up->dma) + if (up->dma && up->dma->rxchan) omap_8250_rx_dma(up, 0); priv->latency = priv->calc_latency;