From 4814a2b3c603438ed8c330c74b49aa662b1ede43 Mon Sep 17 00:00:00 2001 From: Jan Glauber Date: Thu, 25 Nov 2010 09:52:46 +0100 Subject: [S390] qdio: free indicator after reset is finished The qdio device indicator is freed before the device is notified that the indicator is reset. This sequence contains a race when the freed indicator is used by a new device while the reset of the indicator is still pending. Do the reset operation before freeing the indicator to avoid that potential race. Signed-off-by: Jan Glauber Signed-off-by: Martin Schwidefsky --- drivers/s390/cio/qdio_thinint.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/s390/cio/qdio_thinint.c b/drivers/s390/cio/qdio_thinint.c index 752dbee06af..5d9c66627b6 100644 --- a/drivers/s390/cio/qdio_thinint.c +++ b/drivers/s390/cio/qdio_thinint.c @@ -292,8 +292,8 @@ void qdio_shutdown_thinint(struct qdio_irq *irq_ptr) return; /* reset adapter interrupt indicators */ - put_indicator(irq_ptr->dsci); set_subchannel_ind(irq_ptr, 1); + put_indicator(irq_ptr->dsci); } void __exit tiqdio_unregister_thinints(void) -- cgit v1.2.3-70-g09d2