Hello Tudor-Dan Ambarus,
The patch 11105693fa05: "crypto: atmel-ecc - introduce Microchip /
Atmel ECC driver" from Jul 5, 2017, leads to the following static
checker warning:
drivers/crypto/atmel-ecc.c:281 atmel_ecdh_done()
warn: assigning (-22) to unsigned variable 'status'
drivers/crypto/atmel-ecc.c
265 static void atmel_ecdh_done(struct atmel_ecc_work_data *work_data, void *areq,
266 u8 status)
267 {
268 struct kpp_request *req = areq;
269 struct atmel_ecdh_ctx *ctx = work_data->ctx;
270 struct atmel_ecc_cmd *cmd = &work_data->cmd;
271 size_t copied;
272 size_t n_sz = ctx->n_sz;
273
274 if (status)
275 goto free_work_data;
276
277 /* copy the shared secret */
278 copied = sg_copy_from_buffer(req->dst, 1, &cmd->data[RSP_DATA_IDX],
279 n_sz);
280 if (copied != n_sz)
281 status = -EINVAL;
^^^^^^^^^^^^^^^^
status is a u8.
282
283 /* fall through */
284 free_work_data:
285 kzfree(work_data);
286 kpp_request_complete(req, status);
287 }
regards,
dan carpenter
