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-rw-r--r--crypto/evp/e_aes.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/crypto/evp/e_aes.c b/crypto/evp/e_aes.c
index 49ed886e64..42c2e5eb7b 100644
--- a/crypto/evp/e_aes.c
+++ b/crypto/evp/e_aes.c
@@ -3744,7 +3744,7 @@ static int aes_ocb_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
return 1;
case EVP_CTRL_AEAD_SET_TAG:
- if (!ptr) {
+ if (ptr == NULL) {
/* Tag len must be 0 to 16 */
if (arg < 0 || arg > 16)
return 0;