Klocwork: Fix the Null pointer derefernce found by klocwork

Signed-off-by: Thejaswani Putta <thejaswani.putta@intel.com>
Change-Id: I15973ac28e9645826986cf63d2160eedb83024e4
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32290
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Lijian Zhao <lijian.zhao@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

util/cbfstool/cbfs_sections.c

@@ -14,6 +14,7 @@
  */
 
 #include "cbfs_sections.h"
+#include "common.h"
 
 #include <assert.h>
 #include <stdlib.h>
@@ -65,6 +66,10 @@ bool fmd_process_flag_cbfs(const struct flashmap_descriptor *node)
 		return false;
 
 	list_node = (struct descriptor_node *)malloc(sizeof(*list_node));
+	if (!list_node) {
+		ERROR("Cannot allocate CBFS flag node!\n");
+		return false;
+	}
 	list_node->val = node;
 	list_node->next = NULL;