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authorAlan Cox <alan@linux.intel.com>2009-07-09 13:36:22 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2009-07-10 19:17:22 -0700
commit24a15a62dcb1968bf4ffdae55c88fa934d971180 (patch)
tree39a2231da07c6a47a4b66baf0158591a9739ac8f /drivers/usb/serial/generic.c
parent4cd1de0afaaa45309f34d7282ea4c07d9b56a3ff (diff)
downloadop-kernel-dev-24a15a62dcb1968bf4ffdae55c88fa934d971180.zip
op-kernel-dev-24a15a62dcb1968bf4ffdae55c88fa934d971180.tar.gz
tty: Fix USB kref leak
The sysrq code acquired a kref leak. Fix it by passing the tty separately from the caller (thus effectively using the callers kref which all the callers hold anyway) Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/usb/serial/generic.c')
-rw-r--r--drivers/usb/serial/generic.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index 3d8dc56..ce57f6a 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -432,7 +432,7 @@ static void flush_and_resubmit_read_urb(struct usb_serial_port *port)
else {
/* Push data to tty */
for (i = 0; i < urb->actual_length; i++, ch++) {
- if (!usb_serial_handle_sysrq_char(port, *ch))
+ if (!usb_serial_handle_sysrq_char(tty, port, *ch))
tty_insert_flip_char(tty, *ch, TTY_NORMAL);
}
}
@@ -534,11 +534,12 @@ void usb_serial_generic_unthrottle(struct tty_struct *tty)
}
}
-int usb_serial_handle_sysrq_char(struct usb_serial_port *port, unsigned int ch)
+int usb_serial_handle_sysrq_char(struct tty_struct *tty,
+ struct usb_serial_port *port, unsigned int ch)
{
if (port->sysrq && port->console) {
if (ch && time_before(jiffies, port->sysrq)) {
- handle_sysrq(ch, tty_port_tty_get(&port->port));
+ handle_sysrq(ch, tty);
port->sysrq = 0;
return 1;
}
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