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Subject[10/74] [S390] zcrypt: Do not remove coprocessor for error 8/72
2.6.32-stable review patch.  If anyone has any objections, please let us know.

------------------
From: Felix Beck <felix.beck@de.ibm.com>

commit 19b123ebacacdce5e75045bfe82122b01c821a5b upstream.

In a case where the number of the input data is bigger than the
modulus of the key, the coprocessor adapters will report an 8/72
error. This case is not caught yet, thus the adapter will be taken
offline. To prevent this, we return an -EINVAL instead.

Signed-off-by: Felix Beck <felix.beck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
drivers/s390/crypto/zcrypt_pcicc.c | 2 ++
drivers/s390/crypto/zcrypt_pcixcc.c | 2 ++
2 files changed, 4 insertions(+)
--- a/drivers/s390/crypto/zcrypt_pcicc.c
+++ b/drivers/s390/crypto/zcrypt_pcicc.c
@@ -373,6 +373,8 @@ static int convert_type86(struct zcrypt_
zdev->max_mod_size = PCICC_MAX_MOD_SIZE_OLD;
return -EAGAIN;
}
+ if (service_rc == 8 && service_rs == 72)
+ return -EINVAL;
zdev->online = 0;
return -EAGAIN; /* repeat the request on a different device. */
}
--- a/drivers/s390/crypto/zcrypt_pcixcc.c
+++ b/drivers/s390/crypto/zcrypt_pcixcc.c
@@ -462,6 +462,8 @@ static int convert_type86_ica(struct zcr
}
if (service_rc == 12 && service_rs == 769)
return -EINVAL;
+ if (service_rc == 8 && service_rs == 72)
+ return -EINVAL;
zdev->online = 0;
return -EAGAIN; /* repeat the request on a different device. */
}



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