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crypto: qat - silence a static checker warning 

Add range check for ring number.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Tadeusz Struk 2015-08-22 08:29:30 -07:00 committed by Herbert Xu
parent 73613a8159
commit 55e8dba1ac
1 changed files with 4 additions and 0 deletions
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4
drivers/crypto/qat/qat_common/adf_transport.c
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@ -264,6 +264,10 @@ int adf_create_ring(struct adf_accel_dev *accel_dev, const char *section,
dev_err(&GET_DEV(accel_dev), "Can't get ring number\n");
return -EFAULT;
}
if (ring_num >= ADF_ETR_MAX_RINGS_PER_BANK) {
dev_err(&GET_DEV(accel_dev), "Invalid ring number\n");
return -EFAULT;
}
bank = &transport_data->banks[bank_num];
if (adf_reserve_ring(bank, ring_num)) {