diff --git a/src/stdio.c b/src/stdio.c
index d8d53e3..687686b 100644
--- a/src/stdio.c
+++ b/src/stdio.c
@@ -9,25 +9,19 @@
 
 static int32_t rtstring_output_handler(void *user, const char *data, size_t size)
 {
-	string_descriptor_t *str_descriptor = (string_descriptor_t*)user;
+	string_descriptor_t* str_descriptor = (string_descriptor_t*)user;
 
-	size_t len = size;
+	size_t len = size < (str_descriptor->len - 1) ? size : (str_descriptor->len - 1);
 
-	if (str_descriptor->len > 0)
+	if (len)
 	{
-		if (len > (str_descriptor->len - 1))
-			len = str_descriptor->len - 1;
-			
 		str_descriptor->len -= len;
-	}
 
-	if (str_descriptor->ptr && len)
-	{
 		memcpy(str_descriptor->ptr, data, len);
 		str_descriptor->ptr += len;
 		*str_descriptor->ptr = 0;
 	}
-	
+
 	return size;
 }
 
diff --git a/src/stdio_internal.h b/src/stdio_internal.h
index 17ee84a..4eb3d25 100644
--- a/src/stdio_internal.h
+++ b/src/stdio_internal.h
@@ -7,7 +7,7 @@
 
 typedef struct
 {
-	char *ptr;
+	char* ptr;
 	size_t len;
 }string_descriptor_t;