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serial: samsung: Continue to work if DMA request fails

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am: 72ca0ab306

Change-Id: I6b2c536ac7ea2371badb4b8080d2806a001a44d1
This commit is contained in:
Krzysztof Kozlowski 2017-03-18 11:24:12 +00:00 • committed by android-build-merger
commit 5aac664c0c
1 changed files with 4 additions and 2 deletions
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6
drivers/tty/serial/samsung.c
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@ -1030,8 +1030,10 @@ static int s3c64xx_serial_startup(struct uart_port *port)
if (ourport->dma) {
ret = s3c24xx_serial_request_dma(ourport);
if (ret < 0) {
dev_warn(port->dev, "DMA request failed\n");
return ret;
dev_warn(port->dev,
"DMA request failed, DMA will not be used\n");
devm_kfree(port->dev, ourport->dma);
ourport->dma = NULL;
}
}