The patch titled hso: fix soft-lockup has been removed from the -mm tree. Its filename was hso-fix-soft-lockup.patch This patch was dropped because it was merged into mainline or a subsystem tree The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: hso: fix soft-lockup From: Antti Kaijanmäki <antti.kaijanmaki@xxxxxxxxxxx> Fix soft-lockup in hso.c which is triggered on SMP machine when modem is removed while file descriptor(s) under /dev are still open: old version called kref_put() too early which resulted in destroying hso_serial and hso_device objects which were still used later on. Signed-off-by: Antti Kaijanmäki <antti.kaijanmaki@xxxxxxxxxxx> Cc: Greg KH <greg@xxxxxxxxx> Cc: "David S. Miller" <davem@xxxxxxxxxxxxx> Cc: Randy Dunlap <randy.dunlap@xxxxxxxxxx> Cc: <stable@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- drivers/net/usb/hso.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff -puN drivers/net/usb/hso.c~hso-fix-soft-lockup drivers/net/usb/hso.c --- a/drivers/net/usb/hso.c~hso-fix-soft-lockup +++ a/drivers/net/usb/hso.c @@ -1363,7 +1363,7 @@ static void hso_serial_close(struct tty_ /* reset the rts and dtr */ /* do the actual close */ serial->open_count--; - kref_put(&serial->parent->ref, hso_serial_ref_free); + if (serial->open_count <= 0) { serial->open_count = 0; spin_lock_irq(&serial->serial_lock); @@ -1383,6 +1383,8 @@ static void hso_serial_close(struct tty_ usb_autopm_put_interface(serial->parent->interface); mutex_unlock(&serial->parent->mutex); + + kref_put(&serial->parent->ref, hso_serial_ref_free); } /* close the requested serial port */ _ Patches currently in -mm which might be from antti.kaijanmaki@xxxxxxxxxxx are linux-next.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html