Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=3004e5379a525d848bbe8ddff2c534ac0fb04e2c
Commit: 3004e5379a525d848bbe8ddff2c534ac0fb04e2c
Parent: 24e1c13c93cbdd05e4b7ea921c0050b036555adc
Author: Alan Cox <[EMAIL PROTECTED]>
AuthorDate: Thu Jan 3 16:59:04 2008 +0000
Committer: Greg Kroah-Hartman <[EMAIL PROTECTED]>
CommitDate: Fri Feb 1 14:34:42 2008 -0800
USB: keyspan: Fix oops
If we get a data URB back from the hardware after we have put the tty to
bed we go kaboom. Fortunately all we need to do is process the URB
without trying to ram its contents down the throat of an ex-tty.
Cc: stable <[EMAIL PROTECTED]>
Signed-off-by: Alan Cox <[EMAIL PROTECTED]>
Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]>
---
drivers/usb/serial/keyspan.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c
index 7c069a0..ea7bba6 100644
--- a/drivers/usb/serial/keyspan.c
+++ b/drivers/usb/serial/keyspan.c
@@ -838,7 +838,7 @@ static void usa49_indat_callback(struct urb *urb)
port = (struct usb_serial_port *) urb->context;
tty = port->tty;
- if (urb->actual_length) {
+ if (tty && urb->actual_length) {
/* 0x80 bit is error flag */
if ((data[0] & 0x80) == 0) {
/* no error on any byte */
-
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