When exporting state we are waiting indefinitely in the same
was as the ordinary stm32_hash_wait_busy() poll-for-completion
function but without a timeout, which means we could hang in
an eternal loop. Fix this by waiting for completion like the
rest of the code.
Acked-by: Lionel Debieve <lionel.debieve@foss.st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
struct stm32_hash_dev *hdev = stm32_hash_find_dev(ctx);
u32 *preg;
unsigned int i;
+ int ret;
pm_runtime_get_sync(hdev->dev);
- while ((stm32_hash_read(hdev, HASH_SR) & HASH_SR_BUSY))
- cpu_relax();
+ ret = stm32_hash_wait_busy(hdev);
+ if (ret)
+ return ret;
rctx->hw_context = kmalloc_array(3 + HASH_CSR_REGISTER_NUMBER,
sizeof(u32),