Use the safer devm versions of memory mapping functions. Signed-off-by: Enrico Weigelt, metux IT consult <info@xxxxxxxxx> --- drivers/tty/serial/amba-pl011.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c index 89ade21..2a968b2 100644 --- a/drivers/tty/serial/amba-pl011.c +++ b/drivers/tty/serial/amba-pl011.c @@ -2098,7 +2098,7 @@ static const char *pl011_type(struct uart_port *port) */ static void pl011_release_port(struct uart_port *port) { - release_mem_region(port->mapbase, SZ_4K); + devm_release_mem_region(port->dev, port->mapbase, SZ_4K); } /* @@ -2106,7 +2106,10 @@ static void pl011_release_port(struct uart_port *port) */ static int pl011_request_port(struct uart_port *port) { - return request_mem_region(port->mapbase, SZ_4K, "uart-pl011") + return devm_request_mem_region(port->dev, + port->mapbase, + SZ_4K, + "uart-pl011") != NULL ? 0 : -EBUSY; } -- 1.9.1