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-rw-r--r--arch/um/drivers/chan_kern.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/um/drivers/chan_kern.c b/arch/um/drivers/chan_kern.c
index e9a0abc6a32..4ff2503a1bb 100644
--- a/arch/um/drivers/chan_kern.c
+++ b/arch/um/drivers/chan_kern.c
@@ -554,6 +554,7 @@ int parse_chan_pair(char *str, struct line *line, int device,
void chan_interrupt(struct line *line, struct tty_struct *tty, int irq)
{
+ struct tty_port *port = &line->port;
struct chan *chan = line->chan_in;
int err;
char c;
@@ -562,7 +563,7 @@ void chan_interrupt(struct line *line, struct tty_struct *tty, int irq)
goto out;
do {
- if (tty && !tty_buffer_request_room(tty, 1)) {
+ if (!tty_buffer_request_room(port, 1)) {
schedule_delayed_work(&line->task, 1);
goto out;
}