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authorTomoya MORINAGA <tomoya.rohm@gmail.com>2012-03-26 14:43:01 +0900
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-04-09 12:08:41 -0700
commit2a58364da0c04f8dc42cdfe7a4de9d17e536cda8 (patch)
tree9de6182652ada2646547658b1ee0ee26400874fd /drivers/tty/serial/pch_uart.c
parent44db113212d86a5870c2bfe8fb767fa842d68805 (diff)
pch_uart: change type to u8
Target uart register access size is 8bit. However, 32bit is used at 2 points. This patch modifies type "unsigned int" to "unsigned char". Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/pch_uart.c')
-rw-r--r--drivers/tty/serial/pch_uart.c12
1 files changed, 4 insertions, 8 deletions
diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index 110595ed33f5..32ac7ea259db 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -552,14 +552,10 @@ static int pch_uart_hal_read(struct eg20t_port *priv, unsigned char *buf,
return i;
}
-static unsigned int pch_uart_hal_get_iid(struct eg20t_port *priv)
+static unsigned char pch_uart_hal_get_iid(struct eg20t_port *priv)
{
- unsigned int iir;
- int ret;
-
- iir = ioread8(priv->membase + UART_IIR);
- ret = (iir & (PCH_UART_IIR_IID | PCH_UART_IIR_TOI | PCH_UART_IIR_IP));
- return ret;
+ return ioread8(priv->membase + UART_IIR) &\
+ (PCH_UART_IIR_IID | PCH_UART_IIR_TOI | PCH_UART_IIR_IP);
}
static u8 pch_uart_hal_get_line_status(struct eg20t_port *priv)
@@ -1045,7 +1041,7 @@ static irqreturn_t pch_uart_interrupt(int irq, void *dev_id)
unsigned int handled;
u8 lsr;
int ret = 0;
- unsigned int iid;
+ unsigned char iid;
unsigned long flags;
spin_lock_irqsave(&priv->port.lock, flags);