Use container_of instead of casting first structure member.
Signed-off-by: Fabian Frederick <fabf@xxxxxxxxx>
---
drivers/tty/serial/pmac_zilog.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/tty/serial/pmac_zilog.c b/drivers/tty/serial/pmac_zilog.c
index abbfedb..4aca322 100644
--- a/drivers/tty/serial/pmac_zilog.c
+++ b/drivers/tty/serial/pmac_zilog.c
@@ -1352,7 +1352,8 @@ static int pmz_verify_port(struct uart_port *port, struct serial_struct *ser)
static int pmz_poll_get_char(struct uart_port *port)
{
- struct uart_pmac_port *uap = (struct uart_pmac_port *)port;
+ struct uart_pmac_port *uap =
+ container_of(port, struct uart_pmac_port, port);
int tries = 2;
while (tries) {
@@ -1367,7 +1368,8 @@ static int pmz_poll_get_char(struct uart_port *port)
static void pmz_poll_put_char(struct uart_port *port, unsigned char c)
{
- struct uart_pmac_port *uap = (struct uart_pmac_port *)port;
+ struct uart_pmac_port *uap =
+ container_of(port, struct uart_pmac_port, port);
/* Wait for the transmit buffer to empty. */
while ((read_zsreg(uap, R0) & Tx_BUF_EMP) == 0)
@@ -1954,7 +1956,8 @@ static void __exit exit_pmz(void)
static void pmz_console_putchar(struct uart_port *port, int ch)
{
- struct uart_pmac_port *uap = (struct uart_pmac_port *)port;
+ struct uart_pmac_port *uap =
+ container_of(port, struct uart_pmac_port, port);
/* Wait for the transmit buffer to empty. */
while ((read_zsreg(uap, R0) & Tx_BUF_EMP) == 0)
--
1.9.1
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