usb/isp1760: Fix crash when unplugging bug
This fixes a problem with my previous patch series where there's a great
risk that the kernel will crash when unplugging interrupt devices from
the USB port. These lines must have got missing when I rebased the
patches from the older kernel I was working with to 2.6.37 and 2.6-next:
This fixes a bug where the kernel may crash if you unplug a USB device
that has active interrupt transfers.
Signed-off-by: Arvid Brodin <arvid.brodin@enea.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/host/isp1760-hcd.c b/drivers/usb/host/isp1760-hcd.c
index d2b674a..c7c1e0a 100644
--- a/drivers/usb/host/isp1760-hcd.c
+++ b/drivers/usb/host/isp1760-hcd.c
@@ -1624,14 +1624,14 @@
ptd_write(hcd->regs, reg_base, i, &ptd);
- qtd = ints->qtd;
+ qtd = ints[i].qtd;
qh = ints[i].qh;
free_mem(hcd, qtd);
qtd = clean_up_qtdlist(qtd, qh);
- ints->qh = NULL;
- ints->qtd = NULL;
+ ints[i].qh = NULL;
+ ints[i].qtd = NULL;
isp1760_urb_done(hcd, urb);
if (qtd)
@@ -1655,7 +1655,6 @@
if (!qtd)
break;
}
- ints++;
}
spin_unlock_irqrestore(&priv->lock, flags);