tty: serial: remove set but not used variable 'error'

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/tty/serial/pmac_zilog.c: In function 'pmz_receive_chars':
drivers/tty/serial/pmac_zilog.c:222:30: warning:
 variable 'error' set but not used [-Wunused-but-set-variable]

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 1 insertions, 3 deletions

diff --git a/drivers/tty/serial/pmac_zilog.c b/drivers/tty/serial/pmac_zilog.c
index a4ec22d1f214..a9d40988e1c8 100644
--- a/drivers/tty/serial/pmac_zilog.c
+++ b/drivers/tty/serial/pmac_zilog.c
@@ -219,7 +219,7 @@ static void pmz_interrupt_control(struct uart_pmac_port *uap, int enable)
 static bool pmz_receive_chars(struct uart_pmac_port *uap)
 {
         struct tty_port *port;
-        unsigned char ch, r1, drop, error, flag;
+        unsigned char ch, r1, drop, flag;
         int loops = 0;
 
         /* Sanity check, make sure the old bug is no longer happening */
@@ -231,7 +231,6 @@ static bool pmz_receive_chars(struct uart_pmac_port *uap)
         port = &uap->port.state->port;
 
         while (1) {
-                error = 0;
                 drop = 0;
 
                 r1 = read_zsreg(uap, R1);
@@ -273,7 +272,6 @@ static bool pmz_receive_chars(struct uart_pmac_port *uap)
                 uap->port.icount.rx++;
 
                 if (r1 & (PAR_ERR | Rx_OVR | CRC_ERR | BRK_ABRT)) {
-                        error = 1;
                         if (r1 & BRK_ABRT) {
                                 pmz_debug("pmz: got break !\n");
                                 r1 &= ~(PAR_ERR | CRC_ERR);