commit 1fb691aea95741dcc0f1a76e397b68f1690f31a6
author Steven Cooreman <steven.cooreman@silabs.com> Mon Mar 08 12:01:55 2021 +0100
committer Steven Cooreman <steven.cooreman@silabs.com> Mon Mar 08 14:00:34 2021 +0100
tree f01fa06092a6719f0e85ff27663fa708ec1a1751
parent cd640932220d4f5c98b6b1686ce482ffb3953bba

Remove superfluous check

mac size is previously checked to not be less than 4, so it can't be zero
anymore at this point.

Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>

library/psa_crypto.c

diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index a772094..57053ef 100644
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -3022,8 +3022,7 @@
     if( PSA_ALG_IS_HMAC( alg ) )
     {
         /* Sanity check. This shouldn't fail on a valid configuration. */
-        if( operation->mac_size == 0 ||
-            operation->mac_size > sizeof( operation->ctx.hmac.opad ) )
+        if( operation->mac_size > sizeof( operation->ctx.hmac.opad ) )
         {
             status = PSA_ERROR_NOT_SUPPORTED;
             goto exit;