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[S390] qdio: remove the module_get & module_put pair 

Increasing the qdio reference count for every used subchannel
is unnecessary since unloading qdio (if build as a module) is
only possible if other modules that use qdio are unloaded.
Unloading modules that use qdio in turn requires that these
modules shut down all qdio subchannels. Therefore the additional
module_get reference is not needed.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
hifive-unleashed-5.1
Jan Glauber 2008-08-21 19:46:35 +02:00 committed by Martin Schwidefsky
parent 58eb27cd7f
commit 0686e402c3
1 changed files with 0 additions and 4 deletions
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4
drivers/s390/cio/qdio_main.c
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@ -1251,7 +1251,6 @@ no_cleanup:
qdio_set_state(irq_ptr, QDIO_IRQ_STATE_INACTIVE);
mutex_unlock(&irq_ptr->setup_mutex);
module_put(THIS_MODULE);
if (rc)
return rc;
return 0;
@ -1399,9 +1398,6 @@ int qdio_establish(struct qdio_initialize *init_data)
if (cdev->private->state != DEV_STATE_ONLINE)
return -EINVAL;
if (!try_module_get(THIS_MODULE))
return -EINVAL;
mutex_lock(&irq_ptr->setup_mutex);
qdio_setup_irq(init_data);