diff --git a/drivers/io/io_semihosting.c b/drivers/io/io_semihosting.c
index 30ca99c..e33a044 100644
--- a/drivers/io/io_semihosting.c
+++ b/drivers/io/io_semihosting.c
@@ -95,7 +95,7 @@
 		const uintptr_t spec, io_entity_t *entity)
 {
 	int result = -ENOENT;
-	long sh_result = -1;
+	long sh_result;
 	const io_file_spec_t *file_spec = (const io_file_spec_t *)spec;
 
 	assert(file_spec != NULL);
@@ -151,7 +151,7 @@
 		size_t *length_read)
 {
 	int result = -ENOENT;
-	long sh_result = -1;
+	long sh_result;
 	size_t bytes = length;
 	long file_handle;
 
@@ -176,7 +176,7 @@
 static int sh_file_write(io_entity_t *entity, const uintptr_t buffer,
 		size_t length, size_t *length_written)
 {
-	long sh_result = -1;
+	long sh_result;
 	long file_handle;
 	size_t bytes = length;
 
@@ -197,7 +197,7 @@
 /* Close a file on the semi-hosting device */
 static int sh_file_close(io_entity_t *entity)
 {
-	long sh_result = -1;
+	long sh_result;
 	long file_handle;
 
 	assert(entity != NULL);
diff --git a/tools/cert_create/src/ext.c b/tools/cert_create/src/ext.c
index 3f56edb..ad02662 100644
--- a/tools/cert_create/src/ext.c
+++ b/tools/cert_create/src/ext.c
@@ -257,7 +257,7 @@
 	X509_EXTENSION *ex = NULL;
 	ASN1_INTEGER *counter = NULL;
 	unsigned char *p = NULL;
-	int sz = -1;
+	int sz;
 
 	/* Encode counter */
 	counter = ASN1_INTEGER_new();