From 55e8dba1acc2e3e9d77226c3b08b25a02a0e3a3a Mon Sep 17 00:00:00 2001 From: Tadeusz Struk Date: Sat, 22 Aug 2015 08:29:30 -0700 Subject: [PATCH] crypto: qat - silence a static checker warning Add range check for ring number. Reported-by: Dan Carpenter Signed-off-by: Tadeusz Struk Signed-off-by: Herbert Xu --- drivers/crypto/qat/qat_common/adf_transport.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/crypto/qat/qat_common/adf_transport.c b/drivers/crypto/qat/qat_common/adf_transport.c index d5d81985cd4b..3865ae8d96d9 100644 --- a/drivers/crypto/qat/qat_common/adf_transport.c +++ b/drivers/crypto/qat/qat_common/adf_transport.c @@ -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)) { -- 2.20.1