diff options
| author | Oliver Neukum <oneukum@suse.de> | 2007-05-07 08:33:18 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-06-25 23:38:05 -0700 |
| commit | 944dc184f6fe0dc63633099ba87cb75fe4ee0c51 (patch) | |
| tree | 10dd3bf2d600e2fc8884c6581ed0f2b80af8cf74 /drivers/usb/serial/ti_usb_3410_5052.c | |
| parent | 8cfbe7e60d9618d8f80a3cd218c45dd64cb9e5cf (diff) | |
| download | lwn-944dc184f6fe0dc63633099ba87cb75fe4ee0c51.tar.gz lwn-944dc184f6fe0dc63633099ba87cb75fe4ee0c51.zip | |
USB: ti serial driver sleeps with spinlock held
you are submitting an URB with GFP_KERNEL holding a spinlock.
In this case the spinlock can be dropped earlier.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Cc: Al Borchers <alborchers@steinerpoint.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/serial/ti_usb_3410_5052.c')
| -rw-r--r-- | drivers/usb/serial/ti_usb_3410_5052.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c index 4203e2b1a761..3d505fd0645b 100644 --- a/drivers/usb/serial/ti_usb_3410_5052.c +++ b/drivers/usb/serial/ti_usb_3410_5052.c @@ -1555,15 +1555,17 @@ static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty) spin_lock_irqsave(&tport->tp_lock, flags); if (tport->tp_read_urb_state == TI_READ_URB_STOPPED) { + tport->tp_read_urb_state = TI_READ_URB_RUNNING; urb = tport->tp_port->read_urb; + spin_unlock_irqrestore(&tport->tp_lock, flags); urb->complete = ti_bulk_in_callback; urb->context = tport; urb->dev = tport->tp_port->serial->dev; status = usb_submit_urb(urb, GFP_KERNEL); + } else { + tport->tp_read_urb_state = TI_READ_URB_RUNNING; + spin_unlock_irqrestore(&tport->tp_lock, flags); } - tport->tp_read_urb_state = TI_READ_URB_RUNNING; - - spin_unlock_irqrestore(&tport->tp_lock, flags); return status; } |