Hello SrujanaChalla,
This is a semi-automatic email about new static checker warnings.
The patch 10b4f09491bf: "crypto: marvell - add the Virtual Function
driver for CPT" from Mar 13, 2020, leads to the following Smatch
complaint:
drivers/crypto/marvell/octeontx/otx_cptvf_algs.c:132 otx_cpt_aead_callback()
warn: variable dereferenced before check 'cpt_info' (see line 121)
drivers/crypto/marvell/octeontx/otx_cptvf_algs.c
120
121 cpt_req = cpt_info->req;
^^^^^^^^^^^^^
Dereference
122 if (!status) {
123 /*
124 * When selected cipher is NULL we need to manually
125 * verify whether calculated hmac value matches
126 * received hmac value
127 */
128 if (cpt_req->req_type == OTX_CPT_AEAD_ENC_DEC_NULL_REQ &&
129 !cpt_req->is_enc)
130 status = validate_hmac_cipher_null(cpt_req);
131 }
132 if (cpt_info) {
^^^^^^^^^
Check is too late.
133 pdev = cpt_info->pdev;
134 do_request_cleanup(pdev, cpt_info);
regards,
dan carpenter
