crypto: algif - return error code when no data was processed
If no data has been processed during recvmsg, return the error code.
This covers all errors received during non-AIO operations.
If any error occurs during a synchronous operation in addition to
-EIOCBQUEUED or -EBADMSG (like -ENOMEM), it should be relayed to the
caller.
Signed-off-by: Stephan Mueller <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
diff --git a/crypto/algif_skcipher.c b/crypto/algif_skcipher.c
index 968d094..ce3b5fb 100644
--- a/crypto/algif_skcipher.c
+++ b/crypto/algif_skcipher.c
@@ -714,9 +714,11 @@ static int skcipher_recvmsg(struct socket *sock, struct msghdr *msg,
* only handle one AIO request. If the caller wants to have
* multiple AIO requests in parallel, he must make multiple
* separate AIO calls.
+ *
+ * Also return the error if no data has been processed so far.
*/
if (err <= 0) {
- if (err == -EIOCBQUEUED)
+ if (err == -EIOCBQUEUED || !ret)
ret = err;
goto out;
}
