diff options
author | Ingo Molnar <mingo@kernel.org> | 2013-04-08 11:43:30 +0200 |
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committer | Ingo Molnar <mingo@kernel.org> | 2013-04-08 11:43:30 +0200 |
commit | 529801898b24544f93532217ce18a7ebbb2b8c4f (patch) | |
tree | c51c8fd808e6cff15cabb1a9ac29be0661942384 /drivers/usb/serial/f81232.c | |
parent | b847d0501afec4c7b12eb276aec10a2834f953ea (diff) | |
parent | 23995bbee01d75f09f72b1380bd6045a5b02947b (diff) | |
download | linux-next-529801898b24544f93532217ce18a7ebbb2b8c4f.tar.gz |
Merge branch 'for-tip' of git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile into perf/core
Pull IBM zEnterprise EC12 support patchlet from Robert Richter.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/usb/serial/f81232.c')
-rw-r--r-- | drivers/usb/serial/f81232.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/usb/serial/f81232.c b/drivers/usb/serial/f81232.c index b1b2dc64b50b..a172ad5c5ce8 100644 --- a/drivers/usb/serial/f81232.c +++ b/drivers/usb/serial/f81232.c @@ -47,7 +47,6 @@ MODULE_DEVICE_TABLE(usb, id_table); struct f81232_private { spinlock_t lock; - wait_queue_head_t delta_msr_wait; u8 line_control; u8 line_status; }; @@ -111,7 +110,7 @@ static void f81232_process_read_urb(struct urb *urb) line_status = priv->line_status; priv->line_status &= ~UART_STATE_TRANSIENT_MASK; spin_unlock_irqrestore(&priv->lock, flags); - wake_up_interruptible(&priv->delta_msr_wait); + wake_up_interruptible(&port->delta_msr_wait); if (!urb->actual_length) return; @@ -256,11 +255,14 @@ static int wait_modem_info(struct usb_serial_port *port, unsigned int arg) spin_unlock_irqrestore(&priv->lock, flags); while (1) { - interruptible_sleep_on(&priv->delta_msr_wait); + interruptible_sleep_on(&port->delta_msr_wait); /* see if a signal did it */ if (signal_pending(current)) return -ERESTARTSYS; + if (port->serial->disconnected) + return -EIO; + spin_lock_irqsave(&priv->lock, flags); status = priv->line_status; spin_unlock_irqrestore(&priv->lock, flags); @@ -322,7 +324,6 @@ static int f81232_port_probe(struct usb_serial_port *port) return -ENOMEM; spin_lock_init(&priv->lock); - init_waitqueue_head(&priv->delta_msr_wait); usb_set_serial_port_data(port, priv); |