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| author | Jan Glauber <jang@linux.vnet.ibm.com> | 2010-11-25 09:52:46 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2010-11-25 09:52:59 +0100 |
| commit | 4814a2b3c603438ed8c330c74b49aa662b1ede43 (patch) | |
| tree | 34ee08991ea06dc467638f94ff5cc8ea400b18ed /drivers | |
| parent | e8129c642155616d9e2160a75f103e127c8c3708 (diff) | |
| download | blackbird-op-linux-4814a2b3c603438ed8c330c74b49aa662b1ede43.tar.gz blackbird-op-linux-4814a2b3c603438ed8c330c74b49aa662b1ede43.zip | |
[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 <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/s390/cio/qdio_thinint.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/s390/cio/qdio_thinint.c b/drivers/s390/cio/qdio_thinint.c index 752dbee06af5..5d9c66627b6e 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) |
