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path: root/drivers/tty/ehv_bytechan.c
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Diffstat (limited to 'drivers/tty/ehv_bytechan.c')
-rw-r--r--drivers/tty/ehv_bytechan.c9
1 files changed, 1 insertions, 8 deletions
diff --git a/drivers/tty/ehv_bytechan.c b/drivers/tty/ehv_bytechan.c
index 5164f9a57017..ed92622b8949 100644
--- a/drivers/tty/ehv_bytechan.c
+++ b/drivers/tty/ehv_bytechan.c
@@ -371,16 +371,11 @@ console_initcall(ehv_bc_console_init);
371static irqreturn_t ehv_bc_tty_rx_isr(int irq, void *data) 371static irqreturn_t ehv_bc_tty_rx_isr(int irq, void *data)
372{ 372{
373 struct ehv_bc_data *bc = data; 373 struct ehv_bc_data *bc = data;
374 struct tty_struct *ttys = tty_port_tty_get(&bc->port);
375 unsigned int rx_count, tx_count, len; 374 unsigned int rx_count, tx_count, len;
376 int count; 375 int count;
377 char buffer[EV_BYTE_CHANNEL_MAX_BYTES]; 376 char buffer[EV_BYTE_CHANNEL_MAX_BYTES];
378 int ret; 377 int ret;
379 378
380 /* ttys could be NULL during a hangup */
381 if (!ttys)
382 return IRQ_HANDLED;
383
384 /* Find out how much data needs to be read, and then ask the TTY layer 379 /* Find out how much data needs to be read, and then ask the TTY layer
385 * if it can handle that much. We want to ensure that every byte we 380 * if it can handle that much. We want to ensure that every byte we
386 * read from the byte channel will be accepted by the TTY layer. 381 * read from the byte channel will be accepted by the TTY layer.
@@ -422,9 +417,7 @@ static irqreturn_t ehv_bc_tty_rx_isr(int irq, void *data)
422 } 417 }
423 418
424 /* Tell the tty layer that we're done. */ 419 /* Tell the tty layer that we're done. */
425 tty_flip_buffer_push(ttys); 420 tty_flip_buffer_push(&bc->port);
426
427 tty_kref_put(ttys);
428 421
429 return IRQ_HANDLED; 422 return IRQ_HANDLED;
430} 423}