On 13.07.2017 15:32, Lionel Debieve wrote:
> This module register a HASH module that support multiples
> algorithms: MD5, SHA1, SHA224, SHA256. [...]
> +static irqreturn_t stm32_hash_irq_thread(int irq, void *dev_id)
> +{
> + struct stm32_hash_dev *hdev = dev_id;
> + int err;
The 'err' var is used without initialize.
> +
> + if (HASH_FLAGS_CPU & hdev->flags) {
> + if (HASH_FLAGS_OUTPUT_READY & hdev->flags) {
> + hdev->flags &= ~HASH_FLAGS_OUTPUT_READY;
> + goto finish;
> + }
> + } else if (HASH_FLAGS_DMA_READY & hdev->flags) {
> + if (HASH_FLAGS_DMA_ACTIVE & hdev->flags) {
> + hdev->flags &= ~HASH_FLAGS_DMA_ACTIVE;
> + goto finish;
> + }
> + }
> +
> + return IRQ_HANDLED;
> +
> +finish:
> + /*Finish current request */
> + stm32_hash_finish_req(hdev->req, err);
> +
> + return IRQ_HANDLED;
> +}
> +
and here is beginnig for finish_req:
+static void stm32_hash_finish_req(struct ahash_request *req, int err)
+{
+ struct stm32_hash_request_ctx *rctx = ahash_request_ctx(req);
+ struct stm32_hash_dev *hdev = rctx->hdev;
+
+ if (!err && (HASH_FLAGS_FINAL & hdev->flags)) {
--
Best regards,
Kamil Konieczny
Samsung R&D Institute Poland
