Commit 2dc98946 authored by Andy Shevchenko's avatar Andy Shevchenko Committed by Greg Kroah-Hartman

serial: 8250_dma: call serial8250_tx_dma unconditionally

Since we have the same check inside the function we may drop it away in
__dma_tx_complete().
Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent bd737f87
...@@ -21,6 +21,7 @@ static void __dma_tx_complete(void *param) ...@@ -21,6 +21,7 @@ static void __dma_tx_complete(void *param)
struct uart_8250_dma *dma = p->dma; struct uart_8250_dma *dma = p->dma;
struct circ_buf *xmit = &p->port.state->xmit; struct circ_buf *xmit = &p->port.state->xmit;
unsigned long flags; unsigned long flags;
int ret;
dma_sync_single_for_cpu(dma->txchan->device->dev, dma->tx_addr, dma_sync_single_for_cpu(dma->txchan->device->dev, dma->tx_addr,
UART_XMIT_SIZE, DMA_TO_DEVICE); UART_XMIT_SIZE, DMA_TO_DEVICE);
...@@ -36,16 +37,12 @@ static void __dma_tx_complete(void *param) ...@@ -36,16 +37,12 @@ static void __dma_tx_complete(void *param)
if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
uart_write_wakeup(&p->port); uart_write_wakeup(&p->port);
if (!uart_circ_empty(xmit) && !uart_tx_stopped(&p->port)) {
int ret;
ret = serial8250_tx_dma(p); ret = serial8250_tx_dma(p);
if (ret) { if (ret) {
dma->tx_err = 1; dma->tx_err = 1;
p->ier |= UART_IER_THRI; p->ier |= UART_IER_THRI;
serial_port_out(&p->port, UART_IER, p->ier); serial_port_out(&p->port, UART_IER, p->ier);
} }
}
spin_unlock_irqrestore(&p->port.lock, flags); spin_unlock_irqrestore(&p->port.lock, flags);
} }
......
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