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tty: Fix USB kref leak

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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>
This commit is contained in:
Alan Cox 2009-07-09 13:36:22 +01:00 • committed by Linus Torvalds
commit 24a15a62dc
4 changed files with 8 additions and 6 deletions
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3
include/linux/usb/serial.h
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@ -317,7 +317,8 @@ extern int usb_serial_generic_register(int debug);
extern void usb_serial_generic_deregister(void);
extern void usb_serial_generic_resubmit_read_urb(struct usb_serial_port *port,
gfp_t mem_flags);
extern int usb_serial_handle_sysrq_char(struct usb_serial_port *port,
extern int usb_serial_handle_sysrq_char(struct tty_struct *tty,
struct usb_serial_port *port,
unsigned int ch);
extern int usb_serial_handle_break(struct usb_serial_port *port);