From 04e2c2e3bfb1652510d4c12ac2837a8f8b08bd3a Mon Sep 17 00:00:00 2001 From: Tomoya MORINAGA Date: Mon, 26 Mar 2012 14:43:05 +0900 Subject: pch_uart: Fix return value issue Currently, occurring line status interrupt, returned value is not set in interrupt handler function. As a result, 0 can be returned. This patch adds setting returned value. Signed-off-by: Tomoya MORINAGA Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/pch_uart.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers/tty/serial/pch_uart.c') diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c index d2873c6..e7d91d9 100644 --- a/drivers/tty/serial/pch_uart.c +++ b/drivers/tty/serial/pch_uart.c @@ -39,6 +39,7 @@ enum { PCH_UART_HANDLED_RX_ERR_INT_SHIFT, PCH_UART_HANDLED_RX_TRG_INT_SHIFT, PCH_UART_HANDLED_MS_INT_SHIFT, + PCH_UART_HANDLED_LS_INT_SHIFT, }; enum { @@ -63,6 +64,8 @@ enum { PCH_UART_HANDLED_RX_TRG_INT_SHIFT)<<1)) #define PCH_UART_HANDLED_MS_INT (1<<((PCH_UART_HANDLED_MS_INT_SHIFT)<<1)) +#define PCH_UART_HANDLED_LS_INT (1<<((PCH_UART_HANDLED_LS_INT_SHIFT)<<1)) + #define PCH_UART_RBR 0x00 #define PCH_UART_THR 0x00 @@ -1058,6 +1061,8 @@ static irqreturn_t pch_uart_interrupt(int irq, void *dev_id) UART_LSR_PE | UART_LSR_OE)) { pch_uart_err_ir(priv, lsr); ret = PCH_UART_HANDLED_RX_ERR_INT; + } else { + ret = PCH_UART_HANDLED_LS_INT; } break; case PCH_UART_IID_RDR: /* Received Data Ready */ -- cgit v1.1