From 4cd190a736a97e302c038bd91357d636369d4c6b Mon Sep 17 00:00:00 2001 From: Michael Holzheu Date: Fri, 24 Mar 2006 03:15:27 -0800 Subject: [PATCH] s390: tape operation abortion leads to panic When a request is aborted because of a signal, we currently stop the request via csh, but we do not wait for the interrupt of csh in any case. We free the request structure and therefore when the interrupt for the csh operation is presented, the request object is no longer valid and an invalid callback pointer is used. To fix this wait until the interrupt for csh arrives and until wait_event_interruptible() does not return -ERESTARTSYS. Signed-off-by: Michael Holzheu Signed-off-by: Martin Schwidefsky Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/s390/char/tape_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/s390') diff --git a/drivers/s390/char/tape_core.c b/drivers/s390/char/tape_core.c index c42f5e25024e..5d17149a6529 100644 --- a/drivers/s390/char/tape_core.c +++ b/drivers/s390/char/tape_core.c @@ -1015,7 +1015,7 @@ tape_do_io_interruptible(struct tape_device *device, wq, (request->callback == NULL) ); - } while (rc != -ERESTARTSYS); + } while (rc == -ERESTARTSYS); DBF_EVENT(3, "IO stopped on %08x\n", device->cdev_id); rc = -ERESTARTSYS; -- cgit v1.2.1