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driver: Fixed Atmel SAM3 serial driver.

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The Atmel SAM3 serial driver poll in function checked
for new characters incorrectly.

Change-Id: I9024a991404bf949226634c9f6c6ea507577cff1
Signed-off-by: Justin Watson <jwatson5@gmail.com>
This commit is contained in:
Justin Watson 2016-10-05 23:19:58 -07:00 • committed by Anas Nashif
commit b5e9c6d1bb
1 changed files with 1 additions and 1 deletions
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2
drivers/serial/uart_atmel_sam3.c
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@ -209,7 +209,7 @@ static int uart_sam3_poll_in(struct device *dev, unsigned char *c)
{
volatile struct _uart *uart = UART_STRUCT(dev);
if (uart->sr & UART_INT_RXRDY)
if (!(uart->sr & UART_INT_RXRDY))
return (-1);
/* got a character */