Messages in this thread Patch in this message | | | From | Gilad Ben-Yossef <> | Subject | [PATCH 4/4] crypto: Documentation: fix none signal safe sample | Date | Thu, 11 May 2017 14:53:45 +0300 |
| |
The sample code was showing use of wait_for_completion_interruptible() for waiting for an async. crypto op to finish. However, if a signal arrived it would free the buffers used even while crypto HW might still DMA from/into the buffers.
Resolve this by using wait_for_completion() instead.
Reported-by: Eric Biggers <ebiggers3@gmail.com> Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com> --- Documentation/crypto/api-samples.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Documentation/crypto/api-samples.rst b/Documentation/crypto/api-samples.rst index d021fd9..944f08b 100644 --- a/Documentation/crypto/api-samples.rst +++ b/Documentation/crypto/api-samples.rst @@ -48,7 +48,7 @@ Code Example For Symmetric Key Cipher Operation break; case -EINPROGRESS: case -EBUSY: - rc = wait_for_completion_interruptible( + rc = wait_for_completion( &sk->result.completion); if (!rc && !sk->result.err) { reinit_completion(&sk->result.completion); -- 2.1.4
| |