Merge pull request #1591 from jts-arm/cov1

Fix static analysis defects
diff --git a/plat/arm/css/sgi/sgi_image_load.c b/plat/arm/css/sgi/sgi_image_load.c
index dda5e96..09403f8 100644
--- a/plat/arm/css/sgi/sgi_image_load.c
+++ b/plat/arm/css/sgi/sgi_image_load.c
@@ -39,10 +39,15 @@
 
 	platform_name = (char *)fdt_getprop(fdt, 0, "compatible", NULL);
 
+	if (platform_name == NULL) {
+		ERROR("Invalid HW_CONFIG DTB passed\n");
+		return -1;
+	}
+
 	if (strcmp(platform_name, "arm,sgi575") == 0) {
 		platid = mmio_read_32(SSC_VERSION);
 	} else {
-		WARN("Invalid platform \n");
+		WARN("Invalid platform\n");
 		return -1;
 	}