From: Tomoya MORINAGA Date: Mon, 26 Mar 2012 05:43:05 +0000 (+0900) Subject: pch_uart: Fix return value issue X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=04e2c2e3bfb1652510d4c12ac2837a8f8b08bd3a;p=linux-beck.git 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 --- diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c index d2873c67d25d..e7d91d973d52 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 */