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| author | Alan Cox <alan@redhat.com> | 2008-10-13 10:39:46 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-13 09:51:41 -0700 |
| commit | 4a90f09b20f4622dcbff1f0e1e6bae1704f8ad8c (patch) | |
| tree | 9b275f88f2705cb10121d5982741aef3a088a7c8 /drivers/usb/serial/belkin_sa.c | |
| parent | 95f9bfc6b76e862265a2d70ae061eec18fe14140 (diff) | |
| download | kernel_samsung_smdk4412-4a90f09b20f4622dcbff1f0e1e6bae1704f8ad8c.zip kernel_samsung_smdk4412-4a90f09b20f4622dcbff1f0e1e6bae1704f8ad8c.tar.gz kernel_samsung_smdk4412-4a90f09b20f4622dcbff1f0e1e6bae1704f8ad8c.tar.bz2 | |
tty: usb-serial krefs
Use kref in the USB serial drivers so that we don't free tty structures
from under the URB receive handlers as has historically been the case if
you were unlucky. This also gives us a framework for general tty drivers to
use tty_port objects and refcount.
Contains two err->dev_err changes merged together to fix clashes in the
-next tree.
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/usb/serial/belkin_sa.c')
| -rw-r--r-- | drivers/usb/serial/belkin_sa.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/usb/serial/belkin_sa.c b/drivers/usb/serial/belkin_sa.c index 2ebe06c..1913bc7 100644 --- a/drivers/usb/serial/belkin_sa.c +++ b/drivers/usb/serial/belkin_sa.c @@ -322,7 +322,7 @@ static void belkin_sa_read_int_callback(struct urb *urb) * to look in to this before committing any code. */ if (priv->last_lsr & BELKIN_SA_LSR_ERR) { - tty = port->port.tty; + tty = tty_port_tty_get(&port->port); /* Overrun Error */ if (priv->last_lsr & BELKIN_SA_LSR_OE) { } @@ -335,6 +335,7 @@ static void belkin_sa_read_int_callback(struct urb *urb) /* Break Indicator */ if (priv->last_lsr & BELKIN_SA_LSR_BI) { } + tty_kref_put(tty); } #endif spin_unlock_irqrestore(&priv->lock, flags); |