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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2008-10-15 11:31:54 +1100
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2008-10-15 11:31:54 +1100
commit6dc6472581f693b5fc95aebedf67b4960fb85cf0 (patch)
tree06a5a9a08519950575505273eabced331ed51405 /drivers/usb/serial/keyspan_pda.c
parentee673eaa72d8d185012b1027a05e25aba18c267f (diff)
parent8acd3a60bcca17c6d89c73cee3ad6057eb83ba1e (diff)
downloadlinux-rt-6dc6472581f693b5fc95aebedf67b4960fb85cf0.tar.gz
Merge commit 'origin'
Manual fixup of conflicts on: arch/powerpc/include/asm/dcr-regs.h drivers/net/ibm_newemac/core.h
Diffstat (limited to 'drivers/usb/serial/keyspan_pda.c')
-rw-r--r--drivers/usb/serial/keyspan_pda.c16
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c
index 040040a267d9..99e9a14c5bf6 100644
--- a/drivers/usb/serial/keyspan_pda.c
+++ b/drivers/usb/serial/keyspan_pda.c
@@ -172,8 +172,9 @@ static void keyspan_pda_wakeup_write(struct work_struct *work)
struct keyspan_pda_private *priv =
container_of(work, struct keyspan_pda_private, wakeup_work);
struct usb_serial_port *port = priv->port;
-
- tty_wakeup(port->port.tty);
+ struct tty_struct *tty = tty_port_tty_get(&port->port);
+ tty_wakeup(tty);
+ tty_kref_put(tty);
}
static void keyspan_pda_request_unthrottle(struct work_struct *work)
@@ -205,7 +206,7 @@ static void keyspan_pda_request_unthrottle(struct work_struct *work)
static void keyspan_pda_rx_interrupt(struct urb *urb)
{
struct usb_serial_port *port = urb->context;
- struct tty_struct *tty = port->port.tty;
+ struct tty_struct *tty = tty_port_tty_get(&port->port);
unsigned char *data = urb->transfer_buffer;
int retval;
int status = urb->status;
@@ -222,7 +223,7 @@ static void keyspan_pda_rx_interrupt(struct urb *urb)
/* this urb is terminated, clean up */
dbg("%s - urb shutting down with status: %d",
__func__, status);
- return;
+ goto out;
default:
dbg("%s - nonzero urb status received: %d",
__func__, status);
@@ -261,8 +262,11 @@ static void keyspan_pda_rx_interrupt(struct urb *urb)
exit:
retval = usb_submit_urb(urb, GFP_ATOMIC);
if (retval)
- err("%s - usb_submit_urb failed with result %d",
- __func__, retval);
+ dev_err(&port->dev,
+ "%s - usb_submit_urb failed with result %d",
+ __func__, retval);
+out:
+ tty_kref_put(tty);
}