From edb20c7aa5080f983af562d117c577975c9c392e Mon Sep 17 00:00:00 2001 From: Fabian Frederick Date: Sun, 5 Oct 2014 19:01:08 +0200 Subject: [PATCH] tty: use container_of to resolve uart_pmac_port from uart_port Use container_of instead of casting first structure member. Signed-off-by: Fabian Frederick Signed-off-by: Greg Kroah-Hartman --- 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 abbfedb84901..4aca3229b7bb 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)