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[S390] qdio: free indicator after reset is finished

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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>
This commit is contained in:
Jan Glauber 2010-11-25 09:52:46 +01:00 committed by Martin Schwidefsky
parent e8129c6421
commit 4814a2b3c6
1 changed files with 1 additions and 1 deletions
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2
drivers/s390/cio/qdio_thinint.c
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@ -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)