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s390/zcrypt: fix possible memory leak in ap_module_init() 

ap_configuration is malloced in ap_module_init() and should be freed
before leaving from the error handling cases, otherwise it may cause
memory leak.

Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
hifive-unleashed-5.1
Wei Yongjun 2016-07-31 11:47:06 +02:00 committed by Martin Schwidefsky
parent ef4423ce70
commit 33c388b81c
1 changed files with 3 additions and 1 deletions
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4
drivers/s390/crypto/ap_bus.c
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@ -1819,7 +1819,8 @@ int __init ap_module_init(void)
if (ap_domain_index < -1 || ap_domain_index > max_domain_id) {
pr_warn("%d is not a valid cryptographic domain\n",
ap_domain_index);
return -EINVAL;
rc = -EINVAL;
goto out_free;
}
/* In resume callback we need to know if the user had set the domain.
* If so, we can not just reset it.
@ -1892,6 +1893,7 @@ out:
unregister_reset_call(&ap_reset_call);
if (ap_using_interrupts())
unregister_adapter_interrupt(&ap_airq);
out_free:
kfree(ap_configuration);
return rc;
}