diff options
| author | Alan Cox <alan@linux.intel.com> | 2009-07-09 14:36:22 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-07-11 04:17:22 +0200 |
| commit | 24a15a62dcb1968bf4ffdae55c88fa934d971180 (patch) | |
| tree | 39a2231da07c6a47a4b66baf0158591a9739ac8f /drivers/usb/serial/generic.c | |
| parent | tty: Sort out the USB sysrq changes that wrecked performance (diff) | |
| download | linux-24a15a62dcb1968bf4ffdae55c88fa934d971180.tar.xz linux-24a15a62dcb1968bf4ffdae55c88fa934d971180.zip | |
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.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c index 3d8dc5671bea..ce57f6a32bdf 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; } |