When changing the port type, the capabilities flags should be
changed also, otherwise the capabilities will not correspond
to the port type, which make set_sleep() crash on rmmod.
This patch just assign the correct capabilites when the port
changes.
Signed-off-by: Breno Leitao <leitao@xxxxxxxxxxxxxxxxxx>
CC: Michael Reed <mreed@xxxxxxxxxxxxxxxxxx>
---
drivers/tty/serial/8250.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/tty/serial/8250.c b/drivers/tty/serial/8250.c
index 6611535..8e771cb 100644
--- a/drivers/tty/serial/8250.c
+++ b/drivers/tty/serial/8250.c
@@ -3282,6 +3282,7 @@ void serial8250_unregister_port(int line)
uart->port.flags &= ~UPF_BOOT_AUTOCONF;
uart->port.type = PORT_UNKNOWN;
uart->port.dev = &serial8250_isa_devs->dev;
+ uart->capabilities = uart_config[uart->port.type].flags;
uart_add_one_port(&serial8250_reg, &uart->port);
} else {
uart->port.dev = NULL;
--
1.7.1
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