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path: root/drivers/serial/8250.c
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-rw-r--r--drivers/serial/8250.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index 0ae9ced00ed..10c2daab99a 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -320,8 +320,8 @@ static unsigned int serial_in(struct uart_8250_port *up, int offset)
case UPIO_TSI:
if (offset == UART_IIR) {
- tmp = readl((u32 *)(up->port.membase + UART_RX));
- return (cpu_to_le32(tmp) >> 8) & 0xff;
+ tmp = readl(up->port.membase + (UART_IIR & ~3));
+ return (tmp >> 16) & 0xff; /* UART_IIR % 4 == 2 */
} else
return readb(up->port.membase + offset);