diff options
| author | Tomoya MORINAGA <tomoya.rohm@gmail.com> | 2012-03-26 14:43:05 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-04-09 12:08:42 -0700 |
| commit | 04e2c2e3bfb1652510d4c12ac2837a8f8b08bd3a (patch) | |
| tree | 4e8ac3efc15699567d31f35c7c2913c5b3b701b7 /drivers/tty/serial | |
| parent | 159d4e1e73dc2c4745b3edb2f2ae51caaae37e5f (diff) | |
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 <tomoya.rohm@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial')
| -rw-r--r-- | drivers/tty/serial/pch_uart.c | 5 |
1 files changed, 5 insertions, 0 deletions
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 */ |