3 files changed, 4 insertions, 4 deletions
diff --git a/src/security/tpm/tss/tcg-2.0/tss.c b/src/security/tpm/tss/tcg-2.0/tss.c
index 8c9d12f7b0..5d6cbf89b6 100644
--- a/src/security/tpm/tss/tcg-2.0/tss.c
+++ b/src/security/tpm/tss/tcg-2.0/tss.c
@@ -55,7 +55,7 @@ static uint32_t tlcl_send_startup(TPM_SU type)
 	response = tpm_process_command(TPM2_Startup, &startup);
 
 	/* IO error, tpm2_response pointer is empty. */
-	if (response == NULL) {
+	if (!response) {
 		printk(BIOS_ERR, "%s: TPM communication error\n", __func__);
 		return TPM_E_IOERROR;
 	}
@@ -89,7 +89,7 @@ static uint32_t tlcl_send_shutdown(TPM_SU type)
 	response = tpm_process_command(TPM2_Shutdown, &shutdown);
 
 	/* IO error, tpm2_response pointer is empty. */
-	if (response == NULL) {
+	if (!response) {
 		printk(BIOS_ERR, "%s: TPM communication error\n", __func__);
 		return TPM_E_IOERROR;
 	}
diff --git a/src/security/tpm/tss/tcg-2.0/tss_marshaling.c b/src/security/tpm/tss/tcg-2.0/tss_marshaling.c
index ae623043e6..f1b9522e6c 100644
--- a/src/security/tpm/tss/tcg-2.0/tss_marshaling.c
+++ b/src/security/tpm/tss/tcg-2.0/tss_marshaling.c
@@ -517,7 +517,7 @@ static int unmarshal_TPM2B_MAX_NV_BUFFER(struct ibuf *ib,
 
 	nv_buffer->t.buffer = ibuf_oob_drain(ib, nv_buffer->t.size);
 
-	if (nv_buffer->t.buffer == NULL) {
+	if (!nv_buffer->t.buffer) {
 		printk(BIOS_ERR, "%s:%d - "
 		       "size mismatch: expected %d, remaining %zd\n",
 		       __func__, __LINE__, nv_buffer->t.size,
diff --git a/src/security/tpm/tss/vendor/cr50/cr50.c b/src/security/tpm/tss/vendor/cr50/cr50.c
index e38ca30ad4..57d0b61a24 100644
--- a/src/security/tpm/tss/vendor/cr50/cr50.c
+++ b/src/security/tpm/tss/vendor/cr50/cr50.c
@@ -18,7 +18,7 @@ uint32_t tlcl_cr50_enable_nvcommits(void)
 
 	response = tpm_process_command(TPM2_CR50_VENDOR_COMMAND, &sub_command);
 
-	if (response == NULL || (response && response->hdr.tpm_code)) {
+	if (!response || (response && response->hdr.tpm_code)) {
 		if (response)
 			printk(BIOS_INFO, "%s: failed %x\n", __func__,
 			       response->hdr.tpm_code);